DE102013011741A1 - Energy storage device, method for manufacturing this energy storage device - Google Patents

Abstract

Energy storage device (1) for providing electrical energy, comprising at least one slave module (51), with at least two electrochemical energy storage devices (3, 3a), which are interconnected, preferably in series, with a first module housing (28) for receiving the Energy storage devices (3, 3a), a master module (52), with at least two electrochemical energy storage devices (3b, 3c), which are interconnected, preferably in series, with a second module housing (28a) for receiving the energy storage devices (3b, 3c), with a control device (37) for controlling the energy storage devices (3, 3a, 3b, 3c), with two device terminals (39, 39a) of different polarity for providing the electrical voltage of the energy storage devices (3, 3a, 3b, 3c), an electrical interconnection device (55) configured for electrical connection of the energy storage devices (3, 3a) of the Slave module (51) with the device terminals (39, 39a), a signal transmission device (56), which is designed for the transmission of signals between the control device (37) and the slave module (51), a, preferably frame-shaped, first functional device (53) which is mechanically connectable to the second module housing (28) and to at least one of the first module housing (28a), which is designed for receiving, preferably for supporting, the interconnection device (55) and the signal transmission device (56).

Description

The present invention relates to an energy storage device having a plurality of interconnectable electrochemical energy storage devices, and to a method of manufacturing this energy storage device. The invention is described in the context of energy storage devices with lithium-ion chemistry for supplying electrical consumers. It should be noted that the invention may also be used regardless of the type of energy storage device, regardless of the chemistry of the energy storage device or regardless of the type of consumer supplied.

Energy storage devices with a plurality of rechargeable, electrochemical energy storage devices for supplying electrical consumers are known.

The effort in the production of some well-known energy storage devices is sometimes perceived as problematic.

It is an object of the invention to reduce the effort in the manufacture of an energy storage device.

The object is achieved by an energy storage device according to claim 1. The object is also achieved by a manufacturing method according to claim 14 for an energy storage device. Preferred developments of the invention are the subject of the dependent claims.

An energy storage device according to the invention has at least one slave module. The slave module has at least two electrochemical energy storage devices, which are interconnected, preferably in series. The slave module has a first module housing for receiving the energy storage devices.

The energy storage device has a master module. The master module has at least two electrochemical energy storage devices, which are interconnected, preferably in series. The master module has a second module housing for receiving the energy storage devices. The master module has a control device for controlling all energy storage devices of the energy storage device. The master module has two device terminals of different polarity for providing the electrical voltage of the energy storage devices.

The energy storage device has an electrical interconnection device, which is preferably designed for interconnecting the energy storage devices of the at least one slave module with the energy storage devices of the master module, which is preferably designed for electrically connecting the interconnected energy storage devices with the device terminals.

The energy storage device has a signal transmission device which is designed to transmit signals between the control device and the slave module.

The energy storage device has a, preferably frame-shaped, first functional device, which is mechanically connectable to the second module housing and to at least one of the first module housing. The first functional device is designed for receiving, preferably for supporting, the interconnecting device and the signal transmission device.

By virtue of the fact that the master module has the control device, the first functional device can connect the module housing of the master module and the at least one slave module and receive the interconnection device, the number of modules during assembly of the energy storage device is reduced and thus the assembly effort is reduced. This solves the underlying task.

• • die Steuereinrichtung, vorzugsweise gemeinsam mit der Signalübertragungseinrichtung, zur Steuerung sämtlicher Energiespeichereinrichtungen der Energiespeichervorrichtung ausgestaltet ist, und
• • die Verschaltungseinrichtung die Verschaltung der Energiespeichereinrichtungen des wenigstens einen Slave-Moduls mit den Energiespeichereinrichtungen des Master-Moduls ermöglicht, und
• • die erste Funktionseinrichtung die mehreren Modulgehäuse miteinander mechanisch verbinden kann,

braucht die Energiespeichervorrichtung für größere Leistungsfähigkeit und/oder Ladekapazität lediglich um weitere Slave-Module ergänzt zu werden, welche mit derselben Steuereinrichtung und über dieselben Vorrichtungsanschlüsse zur Versorgung eines elektrischen Antriebs betrieben werden können.By doing

• The control device, preferably together with the signal transmission device, is designed to control all the energy storage devices of the energy storage device, and
• • The interconnection device enables the interconnection of the energy storage devices of the at least one slave module with the energy storage devices of the master module, and
• The first functional device can mechanically connect the several module housings to one another,

The energy storage device needs to be supplemented with more power and / or charging capacity only by further slave modules which can be operated with the same control device and via the same device connections for supplying an electric drive.

This solves the underlying task.

Under an energy storage device in the context of the invention is a device to understand, which is preferably the supply of an electrical load with electrical energy serves, which preferably serves to receive electrical energy, which preferably serves to provide electrical energy.

A slave module in the sense of the invention is preferably to be understood as meaning an assembly which serves to provide electrical energy. For this purpose, the slave module has at least two interconnected, energy storage devices, which are arranged in a first module housing. Preferably, the at least two energy storage devices are mechanically and / or electrically connectable to each other, to form a cell assembly.

An electrochemical energy storage device in the context of the invention preferably means a device which serves to convert, preferably reversible, chemical energy into electrical energy. Subsequently, the electrochemical energy storage direction is also called secondary cell. For this purpose, the energy storage device has an electrochemical electrode assembly and at least two current conductors of different polarity. The electrode assembly serves the, preferably reversible, conversion of chemical energy into electrical energy. Preferably, the electrode assembly comprises lithium and / or lithium ions. The electrode assembly is at least partially, preferably substantially completely, surrounded by an enclosure which can counteract an exchange of substances between the electrode assembly and the environment. The two current conductors are connected to electrodes of different polarity of the electrode assembly electrically conductive, preferably cohesively. The current conductors extend in sections from the enclosure in the environment of the energy storage device. At the current conductors, the voltage of the electrode assembly can be tapped. The electrode assembly is preferably designed as an electrode stack or as an electrode winding or as an electrode flat winding. Preferably, the housing is formed with a composite film and / or with at least one housing molding. Particularly preferably, the housing is formed with two housing parts which can be connected to one another. Preferably, the at least one energy storage device is substantially cuboidal or cylindrical.

In the present case, the preferably parallelepiped-shaped energy storage devices each have a first edge length k1, which is measured in the stacking direction or corresponds to the smallest edge length of the substantially parallelepiped-shaped energy storage devices. Thus, the sum of the first edge length of the energy storage devices of the cell arrangement substantially corresponds to the length of the cell arrangement in the stacking direction.

A master module in the sense of the invention is to be understood as meaning an assembly which preferably serves to provide electrical energy, which preferably serves to operate the energy storage devices of the slave module. For this purpose, the master module, in addition to at least two interconnected, energy storage devices, and the control device and these two device ports of different electrical polarity. Preferably, the at least two energy storage devices are mechanically and / or electrically connectable to each other, to form a cell assembly.

A control device in the sense of the invention means a device which preferably serves for charging and / or discharging the energy storage devices of the master module and the at least one slave module, which preferably serves to process at least one detected physical parameter of at least one of these energy storage devices , Preferably, the control device is designed as an integrated circuit. Preferably, the control device from at least one of the energy storage devices of the master module can be supplied with energy. Preferably, the control device is arranged within the second module housing. Preferably, the control device is designed to control a switching element of the energy storage device.

• • einen Rückschluss auf einen erwünschten Betriebszustand der Energiespeichereinrichtung bzw. deren Elektrodenbaugruppe ermöglicht, und/oder
• • einen Rückschluss auf einen ungeplanten bzw. unerwünschten Betriebszustand der Energiespeichereinrichtung bzw. deren Elektrodenbaugruppe ermöglicht, und/oder
• • durch einen Messfühler feststellbar ist, wobei der Messfühler zumindest zeitweise ein Signal zur Verfügung stellen kann, vorzugsweise eine elektrische Spannung oder einen elektrischen Strom, welche(r) besonders bevorzugt proportional zu dem erfassten physikalischen Parameter ist, und/oder
• • von einer Steuereinrichtung verarbeitet werden kann, vorzugsweise mit einem Zielwert verknüpft werden kann, vorzugsweise mit einem anderen der erfassten physikalischen Parameter verknüpft werden kann, und/oder
• • Aufschluss ermöglicht über die Zellspannung, den Zellstrom, die Zelltemperatur, den Innendruck der Zelle, die Integrität, das Freiwerden einer Substanz aus der Elektrodenbaugruppe, das Vorliegen einer Fremdsubstanz vorzugsweise aus der Umgebung der Energiespeichereinrichtung und/oder den Ladezustand, und/oder
• • eine Überführung der Energiespeichereinrichtung in einen anderen Betriebszustand nahe legen kann.

A physical parameter in the sense of the invention is to be understood as meaning a parameter or characteristic property of one of the energy storage devices or of the cell arrangement, which is preferably

• • allows a conclusion to a desired operating state of the energy storage device or its electrode assembly, and / or
• • makes it possible to draw conclusions about an unplanned or undesired operating state of the energy storage device or its electrode assembly, and / or
• • can be detected by a sensor, wherein the sensor can at least temporarily provide a signal, preferably an electrical voltage or an electric current, which (r) is particularly preferably proportional to the detected physical parameter, and / or
• • can be processed by a control device, preferably can be linked to a target value, preferably linked to another of the detected physical parameters, and / or
• Digestion allows for cell voltage, cell current, cell temperature, cell internal pressure, integrity, and the release of a cell Substance from the electrode assembly, the presence of a foreign substance, preferably from the environment of the energy storage device and / or the state of charge, and / or
• • suggest a transfer of the energy storage device to another operating state.

Preferably, the sensor is designed as: voltage sensor, current sensor, temperature sensor or thermocouple, pressure sensor, sensor for a chemical substance, hereinafter referred to as "substance sensor", gas sensor, liquid sensor, position sensor or acceleration sensor, the sensors or sensors preferably the detection of operating parameters of Secondary cell, preferably serve the electrode assembly.

The device connections in the sense of the invention means a device which preferably serves the at least indirect electrical connection to an electrical load, which preferably serves to provide the electrical voltage of the energy storage devices of the energy storage device. Preferably, the device connections are each designed for electrical and / or mechanical connection to an independent current conducting device. The device connections preferably extend at least in sections from the second module housing into the environment.

The signal transmission device in the sense of the invention means a device which preferably serves to transmit control commands from the control device to the at least one slave module, which preferably serves to transmit detected physical parameters from the at least one slave module to the control device which preferably serves to transmit status messages and / or progress messages concerning the operation of the at least one slave module. Preferably, the signal transmission device is formed with at least two electrical conductors, particularly preferably as a signal. Particularly preferably, the signal transmission device extends at least in sections from the second module housing into the environment. Alternatively, the signal transmission device is configured with a plurality of electromagnetic communication elements for wireless signal transmission.

A first functional device in the sense of the invention means a device which preferably serves the mechanical connection of the second module housing with at least one of the first module housing, which preferably serves to receive the interconnection device and the signal transmission device, which preferably supports the interconnection device and the signal transmission device serves.

A cell arrangement in the sense of the invention is preferably to be understood as an arrangement which has a plurality of interconnected, preferably in series, electrochemical energy storage devices or secondary cells which serve to provide electrical energy which is part of the master module or of the at least one slave module , Preferably, when the energy storage devices are formed substantially parallelepiped, then the energy storage devices can be arranged touching each other substantially to a cuboid or stacked to the cell assembly. In the present case, the longitudinal axis of the cell arrangement or arrangement longitudinal axis, along which the cuboid or the cell arrangement more of these energy storage devices can be added, called stacking direction. Preferably, when the energy storage devices are formed with a substantially cylindrical electrode winding, then each of three longitudinal axes of these electrode coils can be arranged according to an equilateral triangle. Preferably, the energy storage devices are connected in series within the cell array. Preferably, the master module and / or at least one or more of these slave modules each have one of these cell arrangements.

A fifth fluid guiding device in the sense of the invention means a device which preferably serves to guide an independent tempering fluid, which preferably serves to exchange the tempering fluid with at least one of the slave modules, which preferably serves to exchange the tempering fluid with the master module , The fifth fluid guiding device has at least one, two or more fluid channels for guiding the tempering fluid. Preferably, the fifth fluid guiding device is formed with at least one pipeline. Particularly preferably, at least one of the pipes serves for the supply of the tempering fluid to the master module and / or the at least one slave module and at least one further of the pipes for the removal of the tempering fluid from the master module and / or the at least one slave module. The fifth fluid guiding device for the master module and for each of the slave modules preferably has a controllable, reversibly closable valve for limiting the fluid flow through the respective module.

Under a tempering in the context of the invention is a device to understand, which is preferably designed to dissipate heat energy or heat output from one or a plurality of the energy storage devices, with which the tempering is thermally conductively connected, preferably when a temperature of the energy storage device exceeds an allowable maximum temperature. The tempering device is preferably used to absorb forces that result from the mass of the at least one energy storage device and their accelerations during operation. Together, the lateral surface of the base plate and the lateral surface of the at least one first fluid guide device, which respectively face the energy storage devices, form the so-called heat exchange surface of the tempering device. Preferably, the tempering device, preferably its base plate or first fluid guiding device, at least one recess, preferably with internal thread, or a projection, preferably with external thread, for engagement with a mechanical connection means, which serves to fix the tempering in one of the module housing.

Under a base plate according to the invention is a device to understand, which preferably serves the heat exchange with at least one of the energy storage devices. The base plate is preferably used to absorb forces resulting from the mass of the at least one energy storage device and their accelerations during operation. The base plate extends from a first end with a, preferably substantially rectangular, plate cross-sectional area in the direction of a second end opposite the first end. The base plate can be cut to length from a, preferably prefabricated, substantially plate-shaped first blank. The first blank has at least two fluid channels for guiding a tempering fluid, wherein the at least two fluid channels extend at least in sections through the first blank or the base plate. Preferably, the first blank is formed as a continuous casting profile or cut to length from a continuous casting profile with a predetermined length. Preferably, the base plate or the first blank is formed with aluminum or an aluminum alloy. Preferably, the base plate is formed substantially cuboid. Preferably, the at least two fluid channels extend substantially rectilinearly through the base plate, more preferably between the first end and the second end of the base plate. Preferably, openings are arranged to the fluid channels in opposite lateral surfaces of the base plate, particularly preferably in opposite smallest lateral surfaces of the substantially cuboid base plate.

A first fluid guiding device in the sense of the invention means a device which preferably serves to guide an independent tempering fluid. The first fluid guiding device is thermally conductive with the base plate, preferably cohesively, connectable, preferably with the first end of the base plate, more preferably with the second end of the base plate. The first fluid guiding device has a third fluid channel, which serves to exchange the tempering fluid with at least one of the fluid channels of the base plate. Preferably, at least one opening, preferably its shape and / or its size, of the third fluid channel corresponds to one of the openings of one of the fluid channels of the base plate. Preferably, the third fluid channel serves to guide the tempering fluid from the first fluid channel of the base plate into a second fluid channel of the same base plate. The first fluid guiding device is thermally conductively connectable to at least one of the energy storage devices, preferably with the first or third energy storage device. Preferably, the first fluid guide device is formed with aluminum or an aluminum alloy. Preferably, the first fluid guide device is formed substantially cuboid. Preferably, openings are arranged to the third fluid channel in the same lateral surface of the substantially cuboid-shaped first fluid guide means, wherein this lateral surface particularly preferably faces the base plate. Preferably, a, preferably substantially rectangular, cross-sectional area of the first fluid guiding device is smaller than or equal to the plate cross-sectional area. Preferably, the first fluid guide device is configured for heat-conducting connection or for heat exchange with the third energy storage device.

A connection device in the sense of the invention means a device which preferably serves to transmit mass forces between the base plate and the at least one energy storage device, preferably to transmit mass forces between the at least one first fluid guidance device and the at least one energy storage device. The connecting device is designed to be connected to the baseplate, preferably to the at least one first fluid-guiding device, preferably in a material-locking manner. Preferably, the connecting device extends substantially parallel to the longitudinal axis of one of the fluid channels of the base plate or substantially parallel to one of the long boundary edges of the substantially cuboid base plate. The connecting device can be cut to length from a, preferably prefabricated, second blank, which has a plurality of first connecting means arranged corresponding to a predetermined spacing relative to one another for mechanical connection to one or more of these Energy storage devices. The predetermined pitch is adapted to the first edge length. Preferably, the predetermined pitch substantially corresponds to the first edge length. Preferably, the second blank or the connecting device is formed with a polymer material. Particularly preferably, the second blank is formed as an injection molded part.

In the context of the invention, a frame is to be understood in particular to mean a device which is designed with four, substantially rod-shaped, frame elements or support elements and a substantially parallelepiped-shaped receiving space. The frame elements or support elements surround the receiving space at least in sections. The receiving space is designed for at least partially receiving at least one assembly of the energy storage device. The four frame elements or support elements are arranged corresponding to the sides of a rectangle and connected to each other in particular cohesively at the corners of this rectangle. The thus interconnected frame members or support members limit the receiving space relative to the environment of the frame. Preferably, the frame has a plurality of these receiving spaces and more than four of these frame elements or support elements.

According to a preferred development, at least one or more of these module housings each have a, preferably tubular, housing middle part, which extends substantially tubular along a housing longitudinal axis, which serves to receive at least one of the energy storage devices, wherein the housing middle part comprises: a housing jacket, which extends along the housing longitudinal axis extending, which can limit a, preferably substantially cuboid, receiving space at least partially relative to the environment of the module housing, wherein the receiving space for receiving at least one, preferably all, the energy storage devices of the master module or the at least one slave module is configured at least one, preferably substantially rectangular, housing opening, which is arranged substantially perpendicular to the housing longitudinal axis, wherein the receiving space zugän through the housing opening is equal, at least one mounting recess for receiving at least one independent fastener, wherein the mounting recess is arranged on or in the housing shell.

The housing middle part has along the housing longitudinal axis a first end and opposite to a second end. The housing middle part has at the first end a first end face and at the second end a second end face, wherein these end faces are arranged substantially perpendicular to the housing longitudinal axis.

The housing middle part has at least one or more fastening recesses, preferably each formed with an undercut, which are each configured for receiving in sections at least one independent fastening element. The at least one fastening recess serves, preferably together with at least one of the independent fastening elements, for fastening the module housing at its destination, preferably in a motor vehicle. The at least one fastening recess is arranged in a lateral surface of the housing middle part and faces the environment. Preferably, the at least one fastening recess extends at least in sections along the housing longitudinal axis. Preferably, two of these fastening recesses extend substantially parallel to the housing longitudinal axis along opposite edges of the same lateral surface of the middle part of the housing. Particularly preferably, a plurality of the lateral surfaces of the housing middle part each have two of these fastening recesses, which extend substantially parallel to the housing longitudinal axis along opposite edges of the same lateral surface of the housing middle part.

Preferably, the middle part of the housing is cut to length from a continuous casting profile or cut to length from the continuous casting profile with a predetermined length. Preferably, the length of the middle part of the housing is adapted to the length of the cell arrangement of the master module or the slave module.

Preferably, the length of the housing middle part is greater than or equal to the length of the cell arrangement when a housing cover for closing the opening to the receiving space is formed without a cavity. Alternatively, that is, if the housing cover has a cavity which can accommodate a portion of the cell assembly, then the length of the housing middle portion is less than or equal to the length of the cell assembly. Preferably, the housing middle part is formed with aluminum or an alloy with aluminum.

Preferably, both the second module housing and at least one or more of these first module housing each have one of these housing middle parts.

This preferred development offers the particular advantage that the module housing with little effort, preferably in the short term, to cell arrangements with different numbers Energy storage devices can be adapted for minimum space requirements at the destination of the energy storage device, preferably in the motor vehicle, or for the lowest possible material consumption for the module housing. This preferred development offers the particular advantage that the module housing can be designed to secure the energy storage device with greater weight and / or with larger accelerations during operation with numerous mounting recesses and / or can be fastened with more numerous fastening elements. This preferred development offers the particular advantage that the module housing or the middle part of the housing can be produced with a prefabricated starting material.

According to a preferred development, which can advantageously be combined with one of the aforementioned preferred developments, the first functional device is configured to extend at least in sections along at least one, preferably substantially at least one, housing openings of at least one of the module housings.

Preferably, the first functional device is formed substantially plate-shaped with at least one support element, wherein the at least one support element is configured to extend at least partially along one of the housing openings of the first module housing and at least partially along one of the housing openings of the second module housing. Preferably, the at least one support element abuts against at least one lateral surface of the housing jacket and / or on one of the end face of the housing middle part. Particularly preferably, the at least one support element bears against a jacket surface of the housing jacket or end face of a first housing middle part and / or on a jacket surface of the housing jacket or end face of a second housing middle part.

Preferably, the first functional device, preferably the at least one support element, at least one recess for a non-positive or positive connection element, preferably for a releasable mechanical connection element, particularly preferably for a screw connection.

Preferably, the first functional device has at least four of these support elements, which are each designed rod-shaped, and are arranged to each other according to the edges of a rectangle. The four support elements are connected together in the corners of this rectangle preferably cohesively. The four support elements form a frame, which leaves a substantially rectangular cavity and at least partially surrounds this cavity.

Preferably, the frame for at least partially receiving, preferably one of the ends, at least one, two or more of the housing shells configured.

Alternatively, the frame for contacting the first or second end face of at least one of these middle parts is formed. Particularly preferably, the frame is designed for at least partially covering the first or second end face of at least one of these middle parts of the housing.

Preferably, the first functional device on at least five of these support elements, which form a frame with two of these cavities, surrounded, wherein one of these support elements these two cavities spaced from each other. Particularly preferably, the support element between these two cavities on a recess for receiving the interconnection device and / or the signal transmission device.

Preferably, the first functional device on at least six of these support elements, which form a frame with three of these cavities, surrounded, wherein two of these support elements each space two of these cavities from each other.

Preferably, the interconnection device and / or the signal transmission device extends through at least one of these cavities.

Particularly preferably, the first functional device has a second of these frames, wherein the first frame and the second frame can be arranged at opposite ends or end faces of the housing middle parts.

The first functional device preferably has two of these frames, as well as particularly preferred a seal inserted between these frames. Preferably, the first of these two frames has a recess, which faces the second of these two frames, which is provided for receiving the interconnection device and / or the signal transmission device. After the second of these two frames is combined with the first of these two frames, an undesired displacement of the interconnection device and / or the signal transmission device from this recess is counteracted. Preferably, this is Recess part of one of these at least five support elements, which form the first of these two frames.

This preferred development offers the particular advantage that the mechanical cohesion of the master module with the at least one slave module is improved. This preferred development offers the particular advantage that the inclusion of the interconnection device and / or the signal transmission device, preferably in one of the cavities of the first functional device, is simplified.

According to a preferred development, which can advantageously be combined with one of the aforementioned preferred developments, the energy storage device or at least one of the module housing has at least one housing cover designed for releasable mechanical connection with at least one of the housing middle parts. The housing cover is used to close at least one of the receiving spaces or at least one of the housing openings. Preferably, the at least one housing cover is substantially plate-shaped, particularly preferably substantially parallelepiped-shaped. Preferably, the at least one housing cover has at least one recess for receiving a mechanical connecting element. Preferably, this recess is arranged adjacent to a corner of the housing cover.

Preferably, the module housing has at least one housing cover, which is designed for detachable connections to the housing middle part. The at least one housing cover is used to close an opening to the receiving space, preferably after the electrode assembly and the tempering are inserted into the receiving space. Preferably, the at least one housing cover serves as a safeguard against the unintentional escape of one of the independent fastening elements from one of the fastening recesses. Preferably, the housing cover has a plurality of recesses preferably for threaded rods or screws for connection to the housing middle part. Preferably, the housing part cover in a lateral surface, which may face the housing middle part during operation of the energy storage device, has a preferably circumferential groove for receiving a seal.

Preferably, a seal between one of the housing cover and the housing middle part is inserted when the housing cover is connected to the housing middle part.

Preferably, the first functional device can be inserted between the at least one housing middle part and the at least one housing cover.

This preferred development offers the particular advantage that the same connection means can connect both the housing cover and the first functional device with the same housing middle part. This preferred development offers the particular advantage that the assembly is simplified.

According to a preferred embodiment, which can advantageously be combined with one of the aforementioned preferred developments, the energy storage device has a functional module which is intended for the master module, which is intended to be inserted into the second module housing, the functional module having at least: one of these housing cover, which for releasably closing at least one of the receiving spaces, preferably at least one of the housing openings, with at least one of the housing middle parts, an electronics assembly, which is connectable to the housing cover having the control device and these device ports, which preferably a measuring device for detecting a physical parameter of at least one of the energy storage devices, which preferably has a data interface for exchanging data or measured values between the control device and an over has a higher-level control.

The electronics assembly is preferably for the exchange of electrical energy with the cell assembly, and preferably the exchange of data with a higher-level controller.

Preferably, the control device from the cell assembly can be supplied with electrical energy. Preferably, the control device is designed to control at least one switching device. Preferably, the control device is signal-connected to the measuring device, particularly preferably for the transmission of commands to the measuring device and / or for receiving at least one detected physical parameter.

Preferably, the measuring device serves to provide an electrical voltage and / or an electrical current, which is particularly preferably proportional to the detected physical parameter. Preferably, the measuring device of the sequential query multiple sensors used. The measuring device preferably provides the provision of acquired measured values to the control device. Preferably, the measuring device is formed integrally with the control device.

The electronic module preferably has a data interface for exchanging data between the control device and a higher-level controller. The data interface is arranged on a lateral surface of the housing cover, which faces the surroundings of the energy storage device. Preferably, the data interface with electrical contacts, such as pins or sockets, which are accessible from the environment of the energy storage device, configured or as an electromagnetic communication element. The data interface is preferably signal-connected to the control device. For the purposes of the invention, measured values, progress messages, error messages and control instructions are used as data.

Preferably, the electronic assembly has at least one, preferably controllable, switching device, wherein the switching device at least temporarily control an electrical current between two of the energy storage devices or between the cell assembly and at least one of the device ports, preferably limit or interrupt. For the purposes of the invention apply a fuse or a contactor as a switching device.

The device connections are preferably arranged on a lateral surface of the housing cover, which faces the surroundings of the energy storage device, and outside the receiving space. Preferably, at least one switching device is arranged in the current path between one of the device connections and the cell arrangement. The device connections are preferably arranged and combined in a housing which can be insulated from the surroundings.

Preferably, the electronic assembly is partially surrounded by a module housing, wherein the module housing is connectable to a lateral surface of the housing cover, said lateral surface can be facing during operation of the energy storage device of the cell assembly. Preferably, the package housing may be disposed within the receiving space during operation of the energy storage device. The module housing preferably has a recess through which one of these plate-shaped sections of the busbar can preferably be guided in the direction of one of the device connections. Preferably, the module housing of the electrical insulation of the electrode assembly relative to the module housing, preferably opposite the housing middle part.

Preferably, the housing cover has a plurality of recesses preferably for threaded rods or screws for connection to the housing middle part. Preferably, the housing part cover in a lateral surface, which may face the housing middle part during operation of the energy storage device, has a preferably circumferential groove for receiving a seal. Preferably, the housing cover is formed substantially plate-shaped. Preferably, the housing cover is formed with a polymer, with aluminum, or with an aluminum alloy.

This preferred development offers the particular advantage that the electrical components which are required for operating the cell arrangement, can be summarized temporally independent of the production of the energy storage device. This preferred development offers the particular advantage that the functional module can be prepared with the required for the operation of the cell assembly electrical components largely independent of the number of energy storage devices of the cell assembly. This preferred development offers the particular advantage that the prepared functional module simplifies the production of the energy storage device.

According to a preferred embodiment, which can be advantageously combined with one of the aforementioned preferred developments, the energy storage device has a fifth fluid guiding device, which is designed to carry out a tempering fluid to the at least slave module, wherein the first functional device is configured for receiving, preferably for supporting , the fifth fluid guiding device, and at least one or two connecting pieces, each of which is designed for exchanging the tempering fluid between the fifth fluid guiding device and at least one independent fluid line, wherein preferably the at least one connecting piece with the functional assembly, particularly preferably with the housing cover, is connectable.

Preferably, the fifth fluid guiding device is designed to carry out the tempering fluid to at least two of these slave modules. Preferably, the fifth fluid guiding device extends between at least one of these connecting pieces and at least one or more of these slave modules.

Preferably, the fifth fluid guiding device is designed to carry out the tempering fluid to the master module. Preferably, the fifth fluid guiding device extends between at least one of these connecting pieces and the master module.

The fifth fluid guiding device preferably extends at least in sections within the first functional device, particularly preferably through at least one of the cavities of the first functional device.

Preferably, the fifth fluid guiding device has at least one, two or more fluid channels for guiding the tempering fluid. Preferably, the fifth fluid guiding device is formed with at least one pipeline. Particularly preferably, at least one of the pipes serves for the supply of the tempering fluid to the master module and / or the at least one slave module and at least one further of the pipes for the removal of the tempering fluid from the master module and / or the at least one slave module. The fifth fluid guiding device for the master module and for each of the slave modules preferably has a controllable, reversibly closable valve for limiting the fluid flow through the respective module.

Preferably, the at least one connecting piece is designed as a substantially tubular connecting piece or as a quick coupling. The functional module particularly preferably has two of these connecting pieces, wherein the first connecting piece is designed for fluid-conducting connection to an independent fluid supply line and the second connecting piece is designed for fluid-conducting connection to an independent fluid return line.

By virtue of the fact that the independent tempering fluid can be supplied to the master module and / or the at least one slave module via the fifth fluid guiding device, heat output or heat energy can be removed from at least one of the energy storage devices if required. By dissipating heat output or heat energy from at least one of the energy storage devices, an undesirably high temperature of at least one of the energy storage devices can be counteracted. By counteracting an undesirably high temperature of at least one of the energy storage devices, irreversible chemical reactions within one of these energy storage devices may be encountered.

This preferred development offers the particular advantage that the heat exchange with the energy storage devices is simplified. This preferred development offers the particular advantage that the operating life of the energy storage devices is extended.

According to a preferred development, which can advantageously be combined with one of the aforementioned preferred developments, the at least one slave module, and preferably the master module, has a cell arrangement and a tempering device.

The cell arrangement has at least three or more interconnected, essentially parallelepipedal, electrochemical energy storage devices each having a first edge length k1. The second energy storage device is arranged between the first and the third energy storage device.

Furthermore, the at least one slave module, preferably the master module, has a tempering device which is designed for tempering, preferably for holding, preferably the energy storage devices, of the cell arrangement.

The tempering device has a base plate, which can be cut to length from a first, preferably plate-shaped, preferably cuboidal, first blank, preferably formed as a continuous casting profile. The base plate or the first blank has at least two fluid channels for guiding a tempering fluid. The at least two fluid channels extend at least in sections through the base plate or the first blank, preferably substantially parallel to a long boundary edge of the substantially cuboid base plate. The base plate can be thermally conductively connected to at least one of the energy storage devices, preferably to the second energy storage device. Preferably, the base plate has a first end and a second end opposite thereto.

The tempering device has at least one, preferably substantially plate-shaped, first fluid guiding device, which is thermally conductive, preferably cohesively, connectable to the base plate, preferably with the second end or a lateral surface of the base plate. The first fluid guiding device is formed with at least one third fluid channel for exchanging the tempering fluid with one of the fluid channels, preferably for transferring the tempering fluid from the first fluid channel into the second fluid channel. The at least one first fluid guiding device can be thermally conductively connected at least to the first or the third energy storage device.

The tempering device has at least one or two connecting devices, which are connectable to the base plate, preferably to the at least one first fluid guiding device, preferably materially. The at least one connecting device can be cut to length from a second blank. The at least one connecting device or the second blank has a plurality of, with a predetermined pitch arranged to each other, first connecting means for, preferably detachable, mechanical connection with at least one or more of the energy storage devices. The predetermined pitch substantially corresponds to the first edge length k1 of the energy storage devices.

Preferably, the length of the tempering device substantially corresponds to an integer multiple of the first edge length or substantially the sum of the first edge length of the energy storage devices or the length of the tempering device is less than or equal to the length of the cell assembly.

The tempering device is configured to dissipate heat energy or heat output from one or more of the energy storage devices, with which the tempering is thermally conductively connectable, preferably when a temperature of the energy storage device exceeds an allowable maximum temperature. With the tempering heat energy or heat output from at least one of these energy storage devices, which is thermally conductively connected to the tempering, be dissipated. In order for a temperature increase of the energy storage devices is met, preferably, the temperature of the energy storage devices can be reduced. With lower temperatures during operation of the energy storage device, irreversible chemical reactions that can lead to passivation of regions of the electrochemical energy storage device can be reduced. Thus, the ability of the energy storage device or the energy storage device to provide electrical energy over a longer period is obtained.

In addition, the tempering device preferably has the effect that it can absorb forces from the mass of the respective energy storage devices during operation of the energy storage device, preferably vibrations or shocks, that it can counteract unwanted relative movement of one of the energy storage devices with respect to an adjacent energy storage device. This is preferably accompanied by the advantage that a mechanical damage to one of the energy storage devices can be counteracted. This is preferably associated with the advantage that the ability of the energy storage device or the energy storage device to provide electrical energy over a longer period can be obtained. This is preferably accompanied by the advantage that an interruption of the electrical interconnection adjacent energy storage device can be counteracted.

In addition, the ablängbare base plate in conjunction with the at least one ablängbaren connection means preferably has the effect that the tempering can be adapted with little effort to different numbers of energy storage devices of the cell assembly or the length of the cell assembly. This is preferably associated with the advantage that material for base plate and connecting device and / or space can be saved. This is preferably associated with the advantage that unused heat exchange surface is avoided. This is preferably associated with the advantage that the tempering device or the energy storage device can be manufactured with prefabricated blanks.

According to a preferred refinement, the third fluid channel is designed as a recess, particularly preferably as a pocket-shaped recess, in the first fluid guiding device. This preferred development offers the advantage that the first fluid guiding device can be produced with little effort.

According to a preferred embodiment, which can be advantageously combined with one of the aforementioned refinements, the tempering device has two connection devices which can be connected along opposite lateral surfaces of the base plate with the, preferably substantially parallelepiped, base plate, preferably materially. This preferred development offers the advantage that the transmission of inertial forces between the at least one first fluid guiding device and the at least one energy storage device is improved.

According to a preferred embodiment, which can advantageously be combined with one of the aforementioned refinements, the first connection means are designed as latching hooks, which are particularly preferably configured for engagement in recesses of the energy storage devices. This preferred development offers the advantage that the mechanical connection between connecting device and energy storage device is simplified.

According to a preferred development, which can advantageously be combined with one of the aforementioned refinements, the base plate has two connecting pieces for fluid-conducting connection to an independent fluid supply line and / or a fluid return line. This preferred development has the advantage that the exchange of tempering fluid with one of the fluid channels of the base plate is simplified.

According to a preferred embodiment, which is advantageous with one of the aforementioned Further developments can be combined, the energy storage device, at least two of these cell assemblies, which are interconnected, which are connected in the stacking direction one behind the other with the same temperature control. This preferred development offers the particular advantage that the energy storage device can be adapted to the available space at the destination.

According to a preferred embodiment, which can be advantageously combined with one of the aforementioned refinements, the energy storage device has at least two of these cell arrangements, which can be connected to one another, which can be connected in the stacking direction to opposite lateral surfaces, preferably opposite heat exchange surfaces of the same temperature control device. This preferred development offers the particular advantage that the energy storage device can be adapted to the available space at the destination.

According to a preferred embodiment, which can be advantageously combined with one of the aforementioned refinements, the energy storage device has at least two of these cell arrangements, which can be interconnected, and two of these tempering devices, wherein the cell arrangements can be arranged side by side with parallel stacking directions. This preferred development offers the particular advantage that the energy storage device can be adapted to the available space at the destination.

According to a preferred embodiment, which can advantageously be combined with one of the aforementioned refinements, the cell arrangement has two, nine, thirteen or more of these second or middle energy storage devices which are arranged between the first and the third energy storage device and with the first and the third energy storage device electrically connected. This preferred development offers the particular advantage that the electrical energy that can be supplied by the cell arrangement is greater. This preferred development offers the particular advantage that the electrical voltage that can be supplied by the cell arrangement is greater, preferably when the energy storage devices are connected in series.

According to a preferred embodiment, which can advantageously be combined with one of the aforementioned refinements, the base plate has, at least in sections, a rib which extends from a lateral surface of the base plate, wherein the lateral surface is provided for connection to one of the connecting devices. Preferably, the at least one connecting device has a, preferably linear, recess or groove, wherein this recess or groove is configured to receive the aforementioned rib. Particularly preferably, the at least one first fluid guiding device has, at least in sections, a rib which extends from a lateral surface of the first fluid guiding device, wherein the lateral surface is provided for connection to one of the connecting devices. This preferred development offers the particular advantage that the positioning of one of the connecting devices with respect to the base plate or the first fluid guiding device is simplified.

According to a preferred development, which can advantageously be combined with one of the aforementioned refinements, the tempering device has two of these base plates. The second end of the first base plate is connected to the first end of the second base plate in such a way, preferably cohesively, that the tempering fluid can be exchanged between at least one of the fluid channels of the first base plate and at least one of the fluid channels of the second base plate. The longitudinal axis of this fluid channel of the first base plate and the longitudinal axis of this fluid channel of the second base plate preferably run parallel. Particularly preferably, these longitudinal axes coincide. In this development, one of the base plates can be cut or shortened. This preferred development offers the particular advantage that the temperature control to a Cell arrangement can be adapted if the sum of the first edge lengths of the energy storage devices of the cell array would exceed the length of the temperature control device with only one base plate.

According to a preferred embodiment, which can advantageously be combined with one of the aforementioned refinements, the tempering device has at least two of these connecting devices which are arranged alongside one another or one behind the other along the same jacket surface of the tempering device such that the grid dimension of the connecting means is also at the transition from the first connecting device to the second connection device is obtained. In this development, one of the connecting devices can be cut or shortened. In particular, this preferred development offers the advantage that the tempering device can be adapted to a cell arrangement if the sum of the first edge lengths of the energy storage devices of the cell arrangement would exceed the length of the tempering device without a second base plate. In particular, this preferred development offers the advantage that the tempering device can be adapted to a cell arrangement if the number of connection means of one of these connection devices is smaller than the number of energy storage devices of the cell arrangement.

According to a preferred embodiment, which can advantageously be combined with one of the aforementioned refinements, at least one or more of the energy storage devices each have at least two current conductors of different polarity. The current conductors serve to provide the electrical voltage of the electrode assembly of the energy storage device. The current conductors extend in sections from a first lateral surface of the energy storage device in its surroundings. The current conductors each have a contacting section, which is arranged substantially parallel to the first lateral surface. Preferably, the current conductors are formed with a metal sheet, more preferably with aluminum or copper or an alloy with aluminum or an alloy with copper.

Preferably, at least one of the current conductors is angled with two legs, wherein the first leg extends from the first lateral surface and the second leg has the contacting portion. Preferably, the second leg or the contacting section extends beyond the first lateral surface in the direction of an adjacent energy storage device, particularly preferably in the direction of the arrangement longitudinal axis.

Preferably, at least one or more of the energy storage devices each have two current conductors of the first polarity and two current collectors of the second polarity. This preferred embodiment offers the particular advantage that the current density per current conductor is reduced.

Preferably, in each case two of these current conductors are arranged adjacent to a first boundary edge of the substantially rectangular first lateral surface and two further of these current conductors adjacent to a second boundary edge, which runs parallel to the first boundary edge, wherein these boundary edges particularly preferably the short sides of the substantially rectangular lateral surface correspond. This preferred embodiment offers the particular advantage that the connected current conductors of adjacent energy storage devices can contribute to their cohesion.

In the operating state of the energy storage device, the first lateral surface is preferably arranged above the second lateral surface, so that the current conductors extend upwards out of the energy storage device.

This preferred development offers the particular advantage that the electrical connection of the energy storage devices is simplified. This preferred development offers the particular advantage that the connected current conductors of adjacent energy storage devices can contribute to their cohesion.

According to a preferred embodiment, which can advantageously be combined with one of the abovementioned developments, preferably with the aforementioned development, at least one contacting section of one of the energy storage devices at least partially covers a contacting section of a further, preferably adjacent, energy storage device. These contacting sections, which overlap at least partially, are connected to one another electrically, preferably by material bonding.

Preferably, a plurality of neighboring pairs of energy storage devices are interconnected within the cell arrangement such that at least one contacting section of one of the energy storage devices of the pair at least partially covers a contacting section of the adjacent energy storage device and these contacting sections are at least partially connected to each other electrically, preferably materially connected.

Preferably, at least one of the contacting portions of the first energy storage device with the first HV connection element is electrically, preferably materially connected.

This preferred development offers the particular advantage that the interconnection of the energy storage devices can be made with a lower contact resistance. This preferred development offers the particular advantage that the electrical connection of the current conductor of adjacent energy storage devices is more stable against shocks or vibrations.

According to a preferred embodiment, which can advantageously be combined with one of the aforementioned refinements, at least one or more of the energy storage devices each have a first connection section, wherein the first connection section extends from a second lateral surface. The second lateral surface is arranged substantially parallel to the first lateral surface. The first connecting section is designed for mechanical connection to one of the connecting means and / or for heat-conducting connection to the base plate or one of the fluid guiding devices. Preferably, the first connecting portion has a leg which is substantially parallel to extends the second lateral surface and is designed for flat abutment on the base plate or one of the fluid guide means. Preferably, the first connecting portion or its leg has a recess for engagement with one of the first connecting means. Preferably, the first connection portion is formed with a metal sheet, wherein the first connection portion is electrically insulated from the electrode assembly of the energy storage device. Preferably, the first connecting portion, which has a substantially L-shaped cross section, extends along a long boundary edge of the substantially rectangular second lateral surface.

Preferably, at least one or more of these energy storage devices have at least two of these first connection sections. Particularly preferably, these first connecting portions, which each have a substantially L-shaped cross section, extend along a long boundary edge or long side of the substantially rectangular second lateral surface. This preferred embodiment offers the particular advantage that the support of the energy storage device is improved on the temperature control.

Preferably, in the operating state of the energy storage device, the first lateral surface is arranged above the second lateral surface, so that the at least one first connecting portion extends downward from the energy storage device.

This preferred development offers the particular advantage that the heat exchange between the energy storage device and the temperature control device is improved.

According to a preferred embodiment, which can be advantageously combined with one of the aforementioned refinements, the energy storage device has a first HV connection element, which can be connected to the cell arrangement, preferably to a current conductor of the first energy storage device, electrically, preferably materially. Furthermore, the energy storage device has a second HV connection element which can be connected to the cell arrangement, preferably to a current conductor of the third energy storage device, electrically, preferably cohesively. At least one, preferably two, of the HV connection elements has a second connection section, which is configured for mechanical connection to one of the connection means and / or for heat-conducting connection to the base plate or one of the fluid guidance devices.

Preferably, at least one of the HV connection elements has a potential tap, which is designed for releasable electrical, preferably non-positive, connection to a current conducting device, preferably designed as a power cable, current band or busbar. Preferably, the at least one HV connection element is designed with a substantially rectangular end face and the potential tap is arranged in the center of gravity of this end face.

Preferably, the second connecting portion is angled and has the one leg, which is designed for flat abutment against the base plate or one of the fluid guide devices. Preferably, the second connecting portion or its leg has a recess for engagement with one of the first connecting means. Preferably, the second connecting portion is formed with a metal sheet, wherein the second connecting portion is electrically isolated from the potential tap. Preferably, the first connecting portion, which has a substantially L-shaped cross section, extends along a long boundary edge of the substantially rectangular second lateral surface

Preferably, the length of the tempering device, preferably measured along one of the long boundary edges of the substantially cuboidal base plate, is less than or equal to the distance between each end face of the two HV connection elements. In particular, this preferred embodiment offers the advantage that the HV connection elements can protect the tempering device and / or the cell arrangement against impacts in the stacking direction or against foreign bodies approaching in the stacking direction.

Preferably, at least one or both of the HV connection elements are substantially plate-shaped and formed with a polymer material. Particularly preferably, the substantially plate-shaped HV connection element has at least one recess for reducing the weight.

In this preferred development, the voltage of the energy storage device, preferably in series, connected energy storage devices or the cell assembly can be tapped at the HV connection elements.

Preferably, the second HV connection element is configured for heat-conducting connection or for heat exchange with the fluid-guiding device at the second end of the base plate.

The length of the cell arrangement, including the connected HV connection elements, is preferably greater than or equal to the length of the temperature control device.

In particular, this preferred development offers the advantage that the HV connection elements can protect the cell arrangement against impacts in the stacking direction or against foreign bodies approaching in the stacking direction. This preferred development offers the particular advantage that the electrical contacting of the cell assembly can be formed mechanically stable.

According to a preferred embodiment, which can advantageously be combined with one of the aforementioned refinements, the energy storage device has at least one voltage sensor device which preferably serves to detect at least one electrical potential or the electrical voltage of one or more of the energy storage devices. The voltage sensor device preferably serves to provide detected measured values relating to the electrical potentials or electrical voltages of the energy storage devices, preferably to a device controller, a measuring device of the energy storage device and / or a communication device of the energy storage device. Preferably, both the master module and the at least one slave module each have at least one of these voltage sensor devices.

The voltage sensing device has a plurality of mutually electrically isolated, contact surfaces for electrical, preferably cohesive, connection with Stromableitern, preferably with their Kontaktierungsabschnitten. At least two of these contact surfaces are arranged to one another substantially corresponding to the first edge length. Preferably, in each case two adjacent of these contact surfaces along the voltage sensor device are arranged corresponding to one another substantially corresponding to the first edge length. Preferably, the contact surfaces are configured to be materially connected to current conductors, preferably to their contacting portions, particularly preferably by means of a thermal joining method.

The voltage sensing device has an interface device which is arranged at a first end of the voltage sensor device, which is mechanically connectable to one, preferably the first, the HV connection elements, which is electrically connected by a conductor to at least one of the contact surfaces, which preferably by each a conductor is electrically connected to all contact surfaces.

Preferably, the interface device has a plurality of contact elements, wherein at least one of the contact elements is electrically connected to one of the contact surfaces by a conductor track. Particularly preferably, all of the contact surfaces are electrically connected by a respective conductor track with one of the contact elements. Preferably, the interface device is formed with an industrially conventional connector.

Alternatively, the interface device to an electromagnetic communication element, which is connected by one conductor tracks with one, several or all of these contact surfaces. The communication element serves to provide or transmit measured values relating to the electrical potentials or electrical voltages of the energy storage devices.

The tension-sensing device preferably has a substantially band-shaped carrier element, which is preferably formed with a polymer material, particularly preferably with a polymer film. The carrier element extends from a first end, on which the interface device is arranged, to a second end of the voltage sensor device. Along the carrier element extend a plurality of conductor tracks, each of which electrically connects one of the contact surfaces with the interface device, preferably with one of the contact elements. Preferably, the conductor tracks are formed with a metal on a lateral surface of the, preferably designed as a polymer film, carrier element and connected to the lateral surface.

Preferably, the voltage-sensing device can be shortened at an end opposite the first end such that the number of remaining contact surfaces is matched to the number of energy storage devices of the cell arrangement. Particularly preferred for a cell arrangement with N energy storage devices, after shortening, N + 1 contact surfaces remain at the voltage sensing device.

Preferably, the voltage sensing device, preferably the carrier element, has a plurality of separable sections, wherein a first separable section is arranged adjacent to the second end of the voltage sensing device. Preferably, at least two or more of these separable sections each have a receiving element, preferably a recess or eyelet or tab, for mechanical connection to the cell arrangement and one of these contact surfaces. The receiving element is configured to receive a mechanical connecting element. Preferably, the voltage sensing device having a predetermined number is particularly preferred prefabricated at least three separable sections. Particularly preferably, the voltage sensor device is to be separated between two of these separable sections, whereupon preferably only N + 1 contact surfaces remain on the voltage sensor device.

Preferably, the, preferably controllable, measuring device is signal-connected to the voltage sensor device, preferably via the interface device of the voltage sensor device. The measuring device preferably performs the, preferably sequential, interrogation of electrical potentials or electrical voltages of the energy storage devices by means of the voltage sensor device. The measuring device preferably provides the provision of acquired measured values to the control device.

This preferred development offers the particular advantage that the voltage sensing device is essentially captive connected to the cell assembly. This preferred development offers the particular advantage that the voltage sensor device can be adapted to cell arrangements with different numbers of energy storage devices.

According to a preferred embodiment, which can be advantageously combined with one of the aforementioned refinements, the energy storage device has two of these voltage sensor devices, preferably when the number of energy storage devices exceeds the number of contact surfaces of one of the voltage sensor devices. The first of these voltage sensing devices makes the detection of at least one electrical potential or voltage of a number M of these energy storage devices and the second of the voltage sensing devices makes the detection of at least one electric potential or voltage of a number P of those energy storage devices of the same cell array, which M + P Energy storage devices comprises. Both voltage sensor devices are designed to provide detected measured values relating to the electrical potentials or electrical voltages of the energy storage devices, preferably to a device controller, a measuring device of the energy storage device and / or a communication device of the energy storage device.

In particular, this preferred development offers the advantage that electrical potentials or the electrical voltages relating to all of the energy storage devices of the cell arrangement can be detected with at least two of the aforementioned voltage sensor devices if the number N of the energy storage devices is not less than the number of contact surfaces.

According to a preferred embodiment, which can be advantageously combined with one of the aforementioned developments, the energy storage device has at least one, preferably cut-to-length, preferably foldable along at least one linear thin film, insulating. This insulating foil serves to insulate the current conductors, preferably the insulation of the voltage sensor device, from the environment of the cell arrangement. Preferably, the insulating film has at least one, preferably strip-shaped, adhesive surface, which serves to connect the insulating film to the cell arrangement. Particularly preferably, the at least one adhesive surface is formed as an adhesive tape. Preferably, the insulating film may be formed with at least two, substantially rectangular, portions for at least partially covering at least two lateral surfaces of the cell assembly, wherein particularly preferably one of these linear thin bodies is arranged between at least two of these lateral surfaces.

The insulating film can preferably be cut to length from a polymer film, the length of the cut-off insulating film particularly preferably being adapted to the length of the cell arrangement in the stacking direction.

This preferred development offers the particular advantage that undesired short-circuits can be counteracted within the cell arrangement. This preferred development offers the particular advantage that current conductors can be isolated from a metallic module housing.

According to a preferred embodiment, which can be advantageously combined with one of the aforementioned refinements, the energy storage device has a heat-conducting foil, which is provided to be inserted between the tempering device and at least one of the energy storage devices, preferably their first connecting section. The heat-conducting foil is preferably used to compensate for component tolerances and roughness for the largest possible heat-conducting connection of the tempering device with the at least one energy storage device. The heat conducting foil is preferably used for the electrical insulation of the energy storage devices with respect to the tempering device.

Preferably, the heat-conducting foil is adapted to the length of the tempering device or to the length of the cell arrangement. Particularly preferably, the length of heat-conducting foil is less than or equal to the length of the tempering device. Especially Preferably, the length of the heat-conducting foil is less than or equal to the length of the cell arrangement.

This preferred development offers the particular advantage that the heat exchange between the tempering device and the at least one energy storage device is improved.

According to a preferred embodiment, which can be advantageously combined with one of the aforementioned refinements, the energy storage device has at least one busbar, which is electrically connectable to a current conductor of one of the energy storage devices, preferably to the third energy storage device, more preferably to the second HV connection element. The busbar can be guided along at least one lateral surface of the cell arrangement, preferably in the direction of the first energy storage device, particularly preferably in the direction of the first HV connection element. The busbar is formed with a, preferably angled, strip material or rod material. Preferably, both the master module and the at least one slave module each have at least one of these bus bars.

Preferably, at least one end of the bus bar has a plate-shaped portion for a non-positive or positive connection element, preferably for a releasable mechanical connection element, particularly preferably for a screw connection, for electrical connection to a Stromleiteinrichtung, preferably designed as a power cable, power band or busbar.

Preferably, the bus bar has a longitudinal section whose length is adapted to the length of the cell arrangement, preferably in the stacking direction.

The bus bar preferably serves to provide the electrical potential which is present at a second end of the cell arrangement at a first end of the cell arrangement. Thus, the electrical voltage can be tapped at only one end of the cell assembly.

Preferably, the power supply device has a second bus bar, which is formed with one of the plate-shaped sections, which is electrically, preferably mechanically detachable, connectable to the first HV connection element. The second busbar is used for electrical connection with a Stromleiteinrichtung, preferably designed as a power cable, power band or busbar.

This preferred development offers the particular advantage that the electrical contacting of the cell assembly is simplified. In particular, this preferred development offers the advantage that the electrical contacting of the cell arrangement can take place via the mechanically more stable HV connection elements.

According to a preferred embodiment, which can advantageously be combined with one of the aforementioned refinements, the energy storage device, preferably its tempering device, has a second of these first fluid guiding devices. The second of the first fluid guiding devices is connected with, preferably the first end, of the base plate in heat-conducting, preferably material-locking manner, preferably opposite the other first fluid guiding device. The second of these first fluid guide devices is configured for heat-conducting connection or for heat exchange with the first energy storage device and / or with the first HV connection element.

The second of these first fluid guiding devices preferably has at least one connecting piece for connection to the fifth fluid guiding device. The second of these first fluid guiding devices particularly preferably has two connecting pieces for connecting different pipelines of the fifth fluid guiding device.

The second of these first fluid guiding devices preferably has at least one or two access openings, each designed to exchange the tempering fluid with at least one of the fluid channels of the base plate.

Preferably, at least one of the third fluid channels extends through this second of these first fluid guiding devices, particularly preferably substantially rectilinearly, between one of the connecting pieces and one of the access openings.

The second of these first fluid guiding devices preferably has at least two or three of these third fluid channels. This particular embodiment is intended for a base plate having four fluid channels, these four fluid channels extending substantially parallel between the first end and the second end of the base plate. A first of these third fluid channels extends through the second of these first fluid guiding devices between one of the connecting pieces and one of these access openings in the direction of a first fluid channel of the base plate. A second of these third fluid channels is formed substantially pocket-shaped within the second of these first fluid guide means and serves the transfer from a second fluid channel of the base plate in a third fluid channel of the base plate. A third of these third fluid channels is formed according to the first of these third fluid channels of the second of these first fluid guide devices and serves to transfer the tempering fluid from a fourth fluid channel of the base plate into an independent fluid return line.

This preferred development offers the particular advantage that the fluid channels of the base plate can be supplied with tempering fluid with the second of these first fluid guiding devices. In particular, this preferred development offers the advantage that the tempering fluid can be exchanged with the fifth fluid guiding device with the second of these first fluid guiding devices. This preferred development offers the particular advantage that heat energy can be exchanged with the first HV connection element.

Further aspects of the invention

A second aspect of the invention relates to a method of manufacturing an energy storage device for providing electrical energy with the steps
S35 providing one of these slave modules, preferably designed according to one of the device claims,
with at least two of these electrochemical energy storage devices which are interconnectable, preferably in series,
with one of these first module housings for receiving the energy storage devices,
S36 providing one of these master modules, preferably designed according to one of the device claims,
with at least two of these electrochemical energy storage devices which are interconnectable, preferably in series,
with one of these second module housings for receiving the energy storage devices,
with one of these control devices for controlling the energy storage devices,
with two of these device terminals of different polarity for providing the electrical voltage of the energy storage devices,
preferably with this functional assembly,
S37 providing one of the first functional devices, preferably designed according to one of the device claims,
which is mechanically connectable to the second module housing and to at least one of the first module housing,
which is designed for receiving, preferably for supporting, one of these electrical interconnection devices, wherein the interconnection device is designed for the electrical connection of the energy storage devices of the slave module to the device connections,
which is designed for receiving, preferably for supporting, one of these signal transmission devices, wherein the signal transmission device is designed to transmit signals between the control device and the slave module,
which is preferably designed for receiving, preferably for supporting, one of these fifth fluid guiding devices,
S38 mechanically connecting the first functional device to at least one of the module housings, preferably to the second module housing and at least one of the first module housings,
S39 electrically connecting the energy storage devices of the slave module to the interconnection device,
S40 electrically connecting the control device to the signal transmission device,
preferably with at least one of the steps
S41 inserting at least one of these fastening elements into at least one of these fastening recesses, preferably into one of the fastening recesses of the slave module and into one of the fastening recesses of the master module, and / or
S42 connecting the fifth fluid guiding device with the tempering device of the slave module, preferably with the tempering device of the master module.

Step S35 is preferably performed multiple times for increased power output and / or increased charge capacity of the energy storage device, whereupon the energy storage device comprises a plurality of slave modules.

Preferably, with steps S35 and S36, at least one of these slave modules and the master module are arranged adjacent to each other, preferably before step S38.

The first functional device preferably accommodates the interconnecting device, the signal transmission device and / or the fifth fluid guiding device following step S37. The first functional device particularly preferably supports the interconnecting device, the signal transmission device and / or the fifth fluid guiding device after step S37.

The order of steps S35, S36 and S37 in any. The steps S35, S36, S37 should be performed before the steps S38, S39, S40. The sequence of steps S35 to S37 can, in particular for less production costs, be adapted to the conditions of the production site and / or to the production facilities.

Step S38 is to be performed more frequently when the energy storage device has a plurality of slave modules, preferably for increased power output and / or increased charge capacity of the energy storage device.

A particular order of steps S38, S39 and S40 is not mandatory. The sequence of steps S38 to S40 can be adapted to the conditions of the production facility and / or to the production facilities, in particular for less production outlay. The implementation of steps S39, S40 after completion of step S38 offers, in particular, the advantage of a simplified embodiment of S39, S40.

The development of the manufacturing method with step 41 offers the particular advantage that the attachment of the modules or module housing is simplified at the destination of the energy storage device. Preferably, step S41 is performed before S38, whereby, in particular, the execution of step S41 is simplified.

Preferably, during step S41, the same fastener is inserted into both one of the mounting recesses of the slave module and one of the mounting recesses of the master module. Preferably, step S41 is carried out repeatedly at higher masses of the modules and / or at higher accelerations during operation of the energy storage device, so that a plurality of fastening elements are available for fastening the module housings or modules.

The further development of the manufacturing method with step 42 offers in particular the advantage that the temperature control of the energy storage devices, preferably the heat removal from the energy storage devices, is simplified, preferably for a longer service life of the energy storage devices. Preferably, step S42 is performed before S38, whereby in particular the execution of step S42 is simplified.

Preferably, step S42 is more often performed when the energy storage device comprises a plurality of slave modules, preferably for increased power output and / or increased charge capacity of the energy storage device.

By virtue of the master module having the control device, the first functional device connecting the module housing of the master module and the at least one slave module and being able to receive the interconnection device, the number of modules during assembly of the energy storage device is reduced.

This solves the underlying task.

• • die Steuereinrichtung, vorzugsweise gemeinsam mit der Signalübertragungseinrichtung, zur Steuerung sämtlicher Energiespeichereinrichtungen der Energiespeichervorrichtung ausgestaltet ist, und
• • die Verschaltungseinrichtung die Verschaltung der Energiespeichereinrichtungen des wenigstens einen Slave-Moduls mit den Energiespeichereinrichtungen des Master-Moduls ermöglicht, und
• • die erste Funktionseinrichtung die mehreren Modulgehäuse miteinander mechanisch verbinden kann,

braucht die Energiespeichervorrichtung für größere Leistungsfähigkeit und/oder Ladekapazität lediglich um weitere Slave-Module ergänzt zu werden, welche mit derselben Steuereinrichtung und über dieselben Vorrichtungsanschlüsse zur Versorgung eines elektrischen Antriebs betrieben werden können.By doing

• The control device, preferably together with the signal transmission device, is designed to control all the energy storage devices of the energy storage device, and
• • The interconnection device enables the interconnection of the energy storage devices of the at least one slave module with the energy storage devices of the master module, and
• The first functional device can mechanically connect the several module housings to one another,

The energy storage device needs to be supplemented with more power and / or charging capacity only by further slave modules which can be operated with the same control device and via the same device connections for supplying an electric drive.

A third aspect of the invention relates to a method for producing a functional assembly, preferably according to the corresponding aforementioned development. The method comprises the steps:
S18 providing a housing cover, configured for connection to a housing middle part, wherein preferably the housing middle part is configured according to one of the aforementioned developments,
S19 Prepare an electronic assembly connectable to the housing cover, the electronics assembly comprising
a control device for controlling the energy storage device, two device ports for providing electrical energy from the cell assembly,
preferably a measuring device for detecting a physical parameter of at least one of the energy storage devices or one of the cell arrangements,
preferably with a data interface for the exchange of data or measured values between the control device with a higher-level control, wherein the electronic module with the
S20 introduction of at least one connection piece into the housing cover for exchanging a tempering fluid with the at least one slave module and / or with the master module and for passing the tempering fluid through the housing cover, preferably after step S18,
S21 connect, preferably releasably, the electronics assembly to the housing cover, preferably after step S18, preferably after step S19.

Preferably, following step S19, at least the control device, which Measuring device, preferably at least one of the switching devices, surrounded by the module housing. Preferably, step S19 is carried out such that the device connections are arranged in a part housing which can be insulated from the environment. Preferably, during step S19, at least one controllable switching element is inserted in the current path between one of the device terminals and the cell array.

Step S20 is preferably carried out twice, whereupon the functional module has a first connection piece for fluid-conducting connection to a fluid supply line and a second connection piece for fluid-conducting connection to a fluid return line.

Preferably, step S21 is carried out such that the electronic assembly is attached to the inner circumferential surface of the housing cover, which faces after closing the receiving space with the housing cover of the cell assembly. Preferably, step S21 is carried out in such a way that the device connections, and preferably the data interface, of the electronic module are connected to the outer jacket surface of the housing cover opposite the inner jacket surface of the housing cover. Preferably, step S21 is performed such that the device terminals are electrically connected to the cell assembly through the housing cover, and more preferably a controllable switching element is inserted in the current path between one of the device terminals and the cell assembly.

In particular, this method offers the advantage that the electrical components which are required for operating the cell arrangement can be combined temporally independently of the production of the energy storage device. In particular, this method offers the advantage that the functional module with the electrical components required for operating the cell arrangement can be prepared largely independently of the number of energy storage devices of the cell arrangement. This method offers the particular advantage that the prepared functional module simplifies the production of the energy storage device.

This solves the underlying task.

A fourth aspect of the invention relates to a method for producing an energy storage device for providing electrical energy, wherein the at least one slave module, preferably the master module, preferably designed according to the first aspect of the invention or a preferred development, at least one of these cell arrangements and at least having one of these tempering.

The cell arrangement has at least three interconnected of these energy storage devices, each having a first edge length. The second energy storage device is arranged between the first and the third energy storage device. Each of the energy storage devices at least two of these current conductors of different polarity, preferably with these Kontaktierungsabschnitten on.

The tempering device has at least one of these base plates, at least one of these first fluid guiding devices and at least one of these connecting devices.

The method comprises the steps:
S1 connect, preferably cohesively, the base plate having at least two fluid channels for guiding a tempering fluid, which extend at least partially through the base plate, with at least one of these, preferably substantially plate-shaped, first fluid guide means, which is formed with at least one third fluid channel to Replacement of the tempering fluid with one of the fluid channels of the base plate, preferably for transferring the tempering fluid from the first fluid channel into the second fluid channel,
wherein the base plate is thermally conductively connectable to at least the second energy storage device,
wherein the at least one fluid guiding device can be connected in a heat-conducting manner to the first or third energy storage device,
S2 connecting, preferably cohesively, at least one of these connecting devices to the base plate, preferably to the at least one fluid guiding device, the at least one connecting device having a plurality of first connecting means arranged at a predetermined pitch for mechanical connection to at least one of the energy storage devices, wherein the predetermined pitch is adapted to the first edge length, preferably substantially corresponds to the first edge length, preferably after step S1, whereupon a tempering device is formed, which is designed for heat exchange with at least one of the energy storage devices, preferably for holding the cell assembly,
S3 arranging the second energy storage device between the first and the third energy storage device such that the second energy storage device contacts the first and the third energy storage device,
S4 connect, preferably mechanically, the at least one connection device with at least one of the energy storage devices by means of at least one of the first connection means, preferably after step S2, preferably after step S3,
S7 interconnecting at least two of these energy storage devices, preferably cohesively connecting a Stromableiters one of these energy storage devices with a conductor of another, preferably adjacent, these energy storage devices, preferably in series, whereupon the cell assembly is formed, whereupon the voltage of the cell assembly to a current conductor of the first Energy storage device and can be tapped at a current conductor of the third energy storage device, preferably after step S3,
wherein preferably the length of the tempering device substantially corresponds to an integer multiple of the first edge length, or substantially equal to the sum of the first edge lengths of the energy storage devices, or is less than or equal to the length of the cell arrangement,
preferably with at least one of the steps
S5 cutting the base plate from a, preferably plate-shaped, first blank, wherein at least two fluid channels for guiding a tempering at least partially extend through the base plate or the first blank, whereupon the length of the base plate is less than the sum of the first edge lengths of the energy storage devices, wherein preferably the first blank is formed with a continuous casting profile, and / or
S6 cutting the connecting device from a second blank, wherein the second blank has a plurality of first spaced interconnected means for mechanically connecting to at least one of the energy storage devices, wherein the predetermined pitch substantially corresponds to the first edge length, preferably the second blank is formed with an injection molded part, whereupon preferably the length of the connecting device is dimensioned such that the number of first connecting means of the connecting device substantially corresponds to the number of energy storage devices of the cell assembly.

The cohesive joining preferably takes place according to step S1 with a welding process. Preferably, step S1 is performed twice when the tempering device has two of these first fluid guiding devices. Preferably, during step S1, the first fluid guiding device is aligned with respect to the base plate such that at least one or more of the fluid channels of the base plate each open into one of the third fluid channels of the first fluid guiding device without a lateral offset.

Preferably, step S2 is carried out at least twice to connect two of these connecting devices with, preferably opposite lateral surfaces of the base plate, preferably also with the at least one fluid guiding device. This preferred embodiment has the advantage that the introduction of inertial forces is improved in the tempering during operation of the energy storage device.

Preferably, step S3 can be carried out such that in the operating state of the cell arrangement or the energy storage device, the first lateral surface of a first of these energy storage devices above the first lateral surface of a second of these energy storage devices is arranged. If the first legs of the current conductors of these two energy storage devices are the same length, then the second leg of the current collector of the first of these energy storage devices comes to rest on the second leg of the current collector of the second of these energy storage devices. If the two energy storage devices are configured with angled first connection devices and these first connection devices extend equally far out of the second lateral surfaces, then the angled leg of the first connection device of the first energy storage device comes to rest above the angled leg of the first connection device of the second energy storage device.

Alternatively, step S3 can be carried out such that in the operating state of the cell arrangement or the energy storage device, the first lateral surface of the first of these energy storage devices is arranged below the first lateral surface of the second of these energy storage devices. If the first legs of the current conductors of these two energy storage devices are the same length, then the second leg of the current collector of the first of these energy storage devices comes to rest under the second leg of the current collector of the second of these energy storage devices. If the two energy storage devices are configured with angled first connection devices and these first connection devices extend equally far out of the second lateral surfaces, then the angled leg of the first connection device of the first energy storage device comes to lie below the angled leg of the first connection device of the second energy storage device.

These alternative embodiments of step S3 offer the particular advantage that the interconnection of adjacent energy storage devices is simplified.

Preferably, step S7 is executed several times, wherein the number of steps S7 depends on the number of energy storage devices of the cell arrangement.

The tempering device is configured to dissipate heat energy or heat output from one or more of the energy storage devices, with which the tempering is thermally conductively connectable, preferably when a temperature of the energy storage device exceeds an allowable maximum temperature. With the tempering heat energy or heat output from one of these energy storage devices, which is thermally conductively connected to the tempering, be dissipated. In order for a temperature increase of the energy storage device is met, preferably, the temperature of the energy storage device can be reduced. With lower temperatures during operation of the energy storage device, irreversible chemical reactions that can lead to passivation of regions of the electrochemical energy storage device can be reduced. Thus, the ability of the energy storage device or the energy storage device to provide electrical energy over a longer period is obtained.

In addition, the tempering device preferably has the effect that it can absorb forces from the mass of the respective energy storage devices during operation of the energy storage device, preferably vibrations or shocks, that it can counteract unwanted relative movement of one of the energy storage devices with respect to an adjacent energy storage device. This is preferably accompanied by the advantage that a mechanical damage to one of the energy storage devices can be counteracted. This is preferably associated with the advantage that the ability of the energy storage device or the energy storage device to provide electrical energy over a longer period can be obtained. This is preferably accompanied by the advantage that an interruption of the electrical interconnection adjacent energy storage device can be counteracted.

In addition, the ablängbare base plate in conjunction with the at least one ablängbaren connection means preferably have the effect that the tempering can be adjusted with little effort to different numbers of energy storage devices of the cell assembly or the length of the cell assembly. This is preferably associated with the advantage that material for base plate and connecting device and / or space can be saved. This is preferably associated with the advantage that unused heat exchange surface is avoided. This is preferably associated with the advantage that the tempering device or the energy storage device can be manufactured with prefabricated blanks.

Preferably, for step S5, a prefabricated first blank, preferably a prefabricated continuous cast profile, of predetermined length, preferably with fluid channels introduced, is used. The combination of the aforementioned production method with step S5 offers the particular advantage that the length of the tempering device can be adapted to the number of energy storage devices of the cell arrangement. The combination of the aforementioned manufacturing method with step S5 offers in particular the advantage that material for base plates can be saved for further tempering devices. The combination of the aforementioned manufacturing method with step S5 offers the particular advantage that the production of the energy storage device can be done with a prefabricated base plate or with a prefabricated first blank.

Preferably, a prefabricated second blank, more preferably a prefabricated polymer profile, of predetermined length is used for step S6. The combination of the aforementioned manufacturing method with step S6 offers the particular advantage that the length of the connecting device can be adapted to the length of the base plate. In particular, the combination of the aforementioned production method with step S6 offers the advantage that material for connecting devices for further tempering devices can be saved. The combination of the aforementioned production method with step S6 offers in particular the advantage that the production of the energy storage device can take place with a prefabricated connecting device or with a prefabricated second blank. According to a preferred development, the method comprises at least one of the following steps:
S8 interconnecting a first HV terminal element, preferably formed according to claim 9, with one of the energy storage devices and a second HV terminal element, preferably formed according to claim 9, with another of the energy storage devices, preferably materially connecting the first HV terminal to a current conductor of the first Energy storage device and the second HV terminal with a current collector of the third energy storage device, preferably after step S7, and / or
S16 cutting to length of a voltage sensing device, preferably formed according to claim 10, which a plurality of contact surfaces for electrical connection with current conductors of the Energy storage devices, and preferably an interface device, wherein at least two of these contact surfaces are arranged to each other substantially the first edge length, whereupon the number of contact surfaces adapted to the number of energy storage devices, preferably shortening the voltage sensing device at one end, which is opposite to the first end of the voltage sensing device , preferably before step S9, and / or
S9 electrical, preferably cohesive, connecting the Spannungsfühlereinrichtung having a plurality of contact surfaces, with at least one of the current conductor, preferably one of the energy storage devices, the cell assembly, preferably with at least one of these Kontaktierungsabschnitte, preferably after step S8, and / or
S10 cutting a, preferably along at least one linear thin foldable foldable, insulating film, which serves to isolate the current collector, preferably the isolation of the voltage sensing device, with respect to the environment of the cell assembly, preferably of a polymer film, preferably before step S11, and / or
Covering, at least in sections, at least two lateral surfaces of the cell arrangement, preferably after folding the insulating film along at least one of the thin locations, preferably covering the voltage sensing device, preferably after step S9, preferably after step S8, and / or
S17 folding, preferably crimping, a strip material or rod material, preferably for forming a longitudinal portion, preferably for forming a plate-shaped portion, whereupon a busbar is formed, whereupon the length of the longitudinal portion is greater than or equal to the sum of the first edge lengths of the energy storage devices of the cell assembly, preferably before step S12, and / or
S12 electrical, preferably non-positive, connecting the busbar, preferably formed according to claim 11, with a current conductor one, preferably the third, the energy storage devices or with one of these HV connection elements, preferably after step S8, preferably after step S11, and / or
S13 cutting to length of a heat-conducting foil, wherein the cut-to-length heat conducting foil is adapted to the length of the tempering device, preferably before step S14, and / or
S14 arranging the heat conducting film on the tempering device, preferably between at least one of the energy storage devices and the tempering device, preferably before step S4, and / or
S15 cutting a housing middle part, preferably formed with a receiving space and at least one mounting recess, preferably substantially tubular, preferably of a continuous casting profile, whereupon the length of the housing middle part substantially corresponds to the length of the tempering device or the cell assembly, and / or
S30 connecting, preferably cohesively, a first of these base plates to a second of these base plates, preferably if the sum of the first edge lengths of the energy storage devices of the cell arrangement would exceed the length of the tempering device, formed without second base plate, preferably before step S4, preferably after step S2, preferably after step S1.

In particular, the combination of the aforementioned production method with step S8 offers the advantage that the electrical contacting of the cell arrangement can take place via the mechanically more stable HV connection elements. The combination of the aforementioned production method with step S8 offers the particular advantage that the mechanically more stable HV connection elements can contribute to the protection of, preferably first and / or third, energy storage devices.

Preferably, step S9 is carried out several times for contacting a plurality of current conductors of the energy storage devices, particularly preferably so often that the electrical voltage of each of the energy storage devices of the cell arrangement becomes detectable. The combination of the aforementioned manufacturing method with step S9 offers the particular advantage that the detection of the electrical voltage of at least one of the energy storage devices can be made with a lower contact resistance. The combination of the aforementioned manufacturing method with step S9 offers the particular advantage that the electrical voltage of a single energy storage device is possible even when the energy storage devices of the cell assembly are connected in series.

Preferably, for step S10, a prefabricated polymer film, preferably rolls, is used. The combination of the aforementioned manufacturing method with step S10 offers the particular advantage that material for insulating films can be saved for further energy storage devices.

The combination of the aforementioned production method with step S11 offers the particular advantage that the insulation, preferably the current conductor and / or the voltage sensing device, of the cell assembly is improved with respect to the environment, preferably with respect to a metallic module housing.

Preferably, during step S12, an end of the bus bar along a lateral surface the cell assembly guided in the direction of the first energy storage device and the first HV connection element. The combination of the aforementioned manufacturing method with step S12 offers in particular the advantage that the electrical contacting of the cell arrangement from the first energy storage device or the first HV connection element is simplified.

Preferably, a prefabricated, preferably rolled, sheet material is used for step S13. The combination of the aforementioned manufacturing method with step S13 offers the particular advantage that material for heat conducting foils can be saved for further energy storage devices.

Preferably, the heat-conducting foil according to step S14 serves to compensate for tolerances of the base plate, at least one of the energy storage devices, at least one of the first connection sections and / or at least one of the second connection sections. Preferably, the heat conducting foil according to step S13 serves to increase the available cross-sectional area for a heat flow [W / m ² ] between the tempering device and at least one of the energy storage devices. Preferably, a prefabricated roll material is used for step S14. The combination of the aforementioned manufacturing method with step S14 offers the particular advantage that a larger heat flow is possible.

Preferably, for step S15, a prefabricated continuous casting profile of predetermined length, particularly preferably with at least one introduced fastening recess, is used. The combination of the aforementioned manufacturing method with step S15 offers the particular advantage that material for housing middle parts can be saved for further module housing. The combination of the aforementioned production method with step S15 offers the particular advantage that the energy storage device can be manufactured with a prefabricated starting material for the middle part of the housing.

Preferably, for step S16, a prefabricated starting material having a predetermined length and a predetermined number of contact surfaces is used. Preferably, for step S16, a prefabricated starting material having a predetermined number, more preferably at least three, of these separable portions is used. Particularly preferably, with step S16 at least one of these separable sections is cut to length by the voltage sensor device. The combination of the aforementioned manufacturing method with step S16 offers the particular advantage that excess contact surfaces in the module housing can not lead to disturbances during operation of the energy storage device. The combination of the aforementioned manufacturing method with step S16 offers the particular advantage that the energy storage device can be manufactured with a prefabricated voltage sensor device, preferably comprising at least three of these separable sections.

Preferably, a pre-made strip material or bar stock is used for step S17. Preferably, multiple operations are performed for step S17. Preferably, by means of step S17, one of these substantially plate-shaped sections of the busbar is produced. The combination of the aforementioned manufacturing method with step S17 offers the particular advantage that the bus bar can be adapted to the length of the cell arrangement in the stacking direction. The combination of the aforementioned production method with step S17 offers the particular advantage that a prefabricated strip material or rod material can be used.

The combination of the aforementioned manufacturing method with step S30 offers in particular the advantage that the tempering device can be adapted to cell arrangements whose number of energy storage devices is unusually large, preferably larger than considered for the procurement of first blanks.

A preferred development of one of the aforementioned methods comprises the steps:
S22 inserting the cell arrangement and, preferably together with, the tempering device into the receiving space of the housing middle part, preferably after step S15, preferably after step S12,
S23 connecting, preferably non-positively, the tempering device with the housing middle part, preferably by means of at least one releasable mechanical connection, particularly preferably by means of at least one screw connection, preferably after step S22,
S24 connect, preferably non-positively, a housing cover or the functional assembly with the housing middle part, whereupon one of the openings is closed to the receiving space, preferably after step S22,
preferably with at least one of the steps
S25 inserting a seal between one of the housing cover and the housing middle part, preferably before step S24, and / or
S26 inserting at least one independent fastening means in one of the mounting recesses of the housing middle part, preferably before step S24, and / or
S27 connecting, preferably fluid-conducting, at least one connecting piece of the functional assembly with a connection piece of the second fluid guiding device, preferably before step S22, preferably before step S24, and / or
S28 electrically connecting one of the device connections with the cell arrangement, preferably with one of the HV connection elements, preferably before step S22, preferably before step S24, and / or
S29 Grounding of the module housing.

Preferably, step S24 is performed twice, so that an opening of the housing middle part is closed with a housing cover and a further opening of the housing middle part with the functional assembly. Preferably, during step S24, the electronics assembly is placed in the receiving space through an opening in the middle part of the housing.

The combination of this preferred development with step S25 offers in particular the advantage that tolerances of one of the housing cover and the middle part of the housing can be at least partially compensated. The combination of this preferred development with step S25 offers the particular advantage that an exchange of substances between the environment and the receiving space, preferably the access of moisture into the receiving space, can be counteracted.

Preferably, step S26 is performed several times, preferably more often with increasing mass of the energy storage device and / or larger accelerations during operation of the energy storage device. The combination of this preferred development with step S26 offers the particular advantage that the energy storage device is prepared for attachment to its destination, preferably in a motor vehicle.

Preferably, step S27 is performed twice, whereupon the energy storage device is prepared for fluid communication with a fluid supply line and a fluid return line. The combination of this preferred development with step S27 offers the particular advantage that the independent tempering fluid can be supplied to the fluid channels of the tempering device. The combination of this preferred development with step S27 offers the particular advantage that the fluid-tight connection outside the receiving space can be performed more easily. The combination of this preferred development with step S27 offers, in particular, the advantage that the fluid-tight connection can be carried out more easily before closing the receiving space.

Preferably, step S28 is performed twice, whereupon the energy stored in the cell array can be provided to the device terminals. The combination of this preferred development with step S28 offers the particular advantage that the electrical connection outside the receiving space can be carried out more easily. The combination of this preferred development with step S28 offers, in particular, the advantage that the electrical connection can be carried out more easily before closing the receiving space.

This preferred development offers the particular advantage that an undesired relative movement of the cell arrangement in the module housing is encountered. This preferred development offers the particular advantage that the cell assembly, the tempering and / or the function module are secured in the recording room against unauthorized access.

This preferred development offers the particular advantage that the number of assemblies during assembly of the energy storage device or one of these modules is reduced with the prepared cell assembly and the prepared tempering and thus the manufacturing cost is reduced.

A first preferred embodiment of the manufacturing method comprises at least the steps S1, S2, S3, S4, S7, S8, S9, S12, wherein the sequence of steps S3 and S4 may also be reversed. Subsequently, the energy storage device is prepared for the provision of electrical energy. Preferably, this preferred embodiment of the manufacturing method also includes steps S11.

A second preferred embodiment of the manufacturing method additionally comprises the steps S5, S6, S10, S16, S17. This preferred embodiment offers the particular advantage that materials can be saved in the production of the energy storage device.

A second preferred embodiment of the manufacturing method comprises steps S22, S23 and S24, wherein the sequence of steps S23 and S24 may also be reversed. Subsequently, the cell arrangement and the tempering are arranged or fixed in the module housing or housing middle part. Preferably, this preferred embodiment of the manufacturing method also includes the steps S25, S26, S27 and S28, which are particularly preferred to perform before step S24. Particularly preferably, this preferred embodiment of the manufacturing method and step S15, which advantageously saves material for the production and unused space in the module housing can be avoided. This preferred embodiment of the production method can be advantageously combined with one of the abovementioned preferred embodiments of the production method. This preferred embodiment offers the particular advantage that the protection of the cell assembly preferably by the module housing is improved. This preferred embodiment offers the particular advantage that the electrical insulation is improved. This preferred embodiment offers the particular advantage that the attachment of the energy storage device at the destination is simplified.

Further advantages, features and applications of the present invention will become apparent from the following description taken in conjunction with the figures. It shows:

1 partially schematically two views of an energy storage device 1 .

2 partially schematically two, juxtaposed housing middle parts 29 . 29a for a first and a second module housing and a multi-part first functional device 53 .

3 partly schematically the multi-part first functional device 53 according to 2 .

4 partially schematically two adjacent middle parts of the housing 29 . 29a , each with a mounting recess 30 . 30a , as well as a fastener 31 .

5 partially schematic that the fastener 31 in the mounting recesses 30 . 30a according to 4 is used,

6 partially schematically a middle part of the housing 29 and two fasteners 31 . 31a for insertion in fastening recesses 30 . 30a .

7 partially schematic that the two fasteners 31 . 31a in the mounting recesses 30 . 30a according to 6 are used

8th partially schematically two middle parts 29 . 29a , which together with two fasteners 31 . 31a are connected, similar 5 , with further fastening elements 31 , b, 31c . 31d . 31c 31d . 31e which are similar in mounting recesses 7 are used

9 partially schematically a function module 34 .

10 partially schematically and partially disassembled a cell assembly 2 and two HV connection elements,

11 partly schematically the cell arrangement 2 according to 10 with connected HV connection elements, a heat conducting foil 43 , as well as a tempering device 4 , before step S4

12 partly schematically the cell arrangement 2 according to 11 , which with the tempering device 4 is connected, after step S4,

13 partly schematically the cell arrangement 2 with the associated tempering device 4 according to 12 , as well as a voltage sensor device 16 , before step S9,

14 partly schematically the cell arrangement 2 with the associated tempering device 4 according to 12 and 13 after step S9,

15 partly schematically the cell arrangement 2 with the associated tempering device 4 and the voltage sensing device 16 according to 13 and 14 , as well as an insulating film 21 , before connecting the insulating film 21 with the cell arrangement 2 .

16 partly schematically the cell arrangement 2 according to 15 after bonding with the insulating film 21 .

17 partly schematically the cell arrangement 2 according to 16 as well as two of these busbars 25 . 25a , before step S12,

18 partly schematically the cell arrangement 2 according to 17 after step S12,

19 partly schematically the cell arrangement 2 according to 16 before the steps S39 and S40,

20 partly schematically the cell arrangement 2 according to 19 after the steps S39 and S40,

21 partly schematically two of these cell arrangements 2 . 2a , essentially according to the 18 and 20 after step S37,

22 partially schematically the cell arrangements 2 . 2a , according to 21 after step S37,

23 partially schematically the cell arrangements 2 . 2a , according to 22 , as well as one of these functional assemblies 34 after step S21,

24 partially schematically the cell arrangements 2 . 2a , according to 22 , as well as one of these functional assemblies 34 after step S21,

25 partially schematically the cell arrangements 2 . 2a , according to 22 , as well as one of these functional assemblies 34 after step S15, before step S22, after step S39, after step S40,

26 partially schematically a master module 52 and a slave module 51 , essentially according to 25 after step 38, after step S39, after step S40,

27 partly schematically the master module 52 and the slave module 51 , according to 26 , before step S23,

28 partly schematically the master module 52 and the slave module 51 , according to 27 after step S23,

29 partially schematically a plurality of housing middle parts 29 . 29a . 29b . 29b , as well as two of these first functional devices 53 . 53a .

30 partly schematically the first functional device 53 according to 29 .

31 partially schematically one of these slave modules 51 after step S23,

32 partly schematically three of these slave modules 51 . 51a . 51b , a cell arrangement 2 for the master module, as well as a first functional device 53 , before step S38,

33 partially schematically the arrangement according to 32 as well as the interconnection device 55 , before step S39,

34 partially schematically the arrangement according to 33 after step S39,

35 partially schematically the arrangement according to 34 with one of these function modules 34 , before step S38,

36 partially schematically the arrangement according to 35 after step S27,

37 partially schematically the arrangement according to 36 with another of these first functional devices 53a during step S22, in particular for the formation of the master module 52 .

38 partially schematically the arrangement according to 37 after step S22, after step S23,

39 partially schematically an energy storage device 1 essentially according to 38 after step S38,

40 partially schematically another energy storage device 1 with a master module 52 and a slave module 51 , which by means of one of these first functional means 53 are connected,

41 partially schematically another energy storage device 1 with a master module 52 and two different length slave modules 51 . 51a , which by means of one of these first functional means 53 are connected,

42 partially schematically another energy storage device 1 with a master module 52 and three of these slave modules 51 . 51a . 51b , which by means of one of these first functional means 53 are connected,

43 Flowcharts to a manufacturing method for an energy storage device 1 .

44 a flow chart of a manufacturing method for a functional assembly,

45 Flowcharts for a manufacturing method of a cell arrangement and a tempering device for a master module and / or a slave module,

46 a flowchart of a manufacturing method for a master module and / or a slave module.

1 partially shows schematically two views of an energy storage device 1 , The energy storage device 1 has a master module 52 and a slave module 51 on. Each of these modules has a module housing 28 . 28a and the two energy storage devices 3 . 3a . 3b . 3b on. The energy storage devices 3 . 3a . 3b . 3b are from the module housings 28 . 28a added. The energy storage devices 3b . 3c of the master module 52 are interconnected, preferably in series. The energy storage devices 3 . 3a of the slave module 51 are interconnected, preferably in series.

The master module 52 has this control device 37 on. The control device 37 is via the signal transmission device 56 with the slave module 51 signal-connected. The control device 37 is in the module housing 28a of the master module 52 added. The signal transmission device 56 is from the first functional device 53 received, preferably supported. Preferably, the control device 37 formed with an integrated circuit.

The electrical interconnection device 55 , preferably formed with at least one bus bar, is electrically connected to the Energy storage devices 3b . 3c of the master module 52 and with the energy storage devices 3 . 3a of the slave module 51 connected. The interconnection device 55 is from the first functional device 53 received, preferably supported. Preferably, the interconnection device 55 at least in three parts to the series connection of the energy storage devices 3b . 3c of the master module 52 with the energy storage devices 3 . 3a of the slave module 51 ,

At the device connections 39 . 39a is the electrical voltage of the energy storage devices 3 . 3a . 3b . 3b tapped. The interconnection device 55 is between the device connections 39 . 39a and the energy storage devices 3 . 3a . 3b . 3b connected. The device connections 39 . 39a extend from the first functional device 53 in the nearby areas.

The first functional device 53 connects the module housing 28 . 28a mechanically with each other.

Preferably, the energy storage devices 3 . 3a . 3b . 3b formed substantially cuboid. Preferably, two current conductors of different polarity extend from in each case one of these energy storage devices 3 . 3a . 3b . 3b , preferably from the same lateral surface of the respective energy storage device 3 . 3a . 3b . 3b ,

2 shows partially schematically two juxtaposed housing middle parts 29 . 29a for a first module housing 28 and a second module housing 28a and a multi-part first functional device 53 ,

The middle parts of the housing 29 . 29a are arranged adjacent to each other. Preferably, a lateral surface of the first housing middle part touch 29 and a lateral surface of the second middle part of the housing 29a , Preferably, the housing middle parts 29 . 29a releasably mechanically interconnected by means of at least one fastener 31 . 31a , Preferably, the housing middle parts 29 . 29a each cut to length from a continuous casting profile. The middle parts of the housing 29 . 29a each have a plurality of mounting recesses. The middle parts of the housing 29 . 29a each extend along a housing longitudinal axis. The middle parts of the housing 29 . 29a each have a receiving space and two faces each. The receiving space is accessible through at least one housing opening, wherein the housing opening is arranged substantially perpendicular to the housing longitudinal axis.

The first functional device 53 is with two frames 53 ' . 53 '' educated. Between the two frames 53 ' . 53 '' can a seal 46a be inserted. The first functional device 53 is configured, to an end face of the first middle part of the housing 29 and to an end face of the second housing middle part 29a to be created.

Between the first functional device 53 and one of the lids 35 can a seal 46 be inserted. The covers are used to close the housing openings of the housing middle parts 29 . 29a ,

Between the first functional device and at least one of the middle parts of the housing 29 . 29a a seal can be placed.

3 shows partially schematically the multi-part first functional device 53 according to 2 , The first functional device 53 has two substantially plate-shaped frame 53 ' . 53 '' on, each one of these frames 53 ' . 53 '' a recess, said recess leaves the adjacent housing opening at least partially free. Preferably, this recess is substantially cuboid.

Between the two frames 53 ' . 53 '' can a seal 46a be inserted.

The first frame 53 ' has at least one support element 57 with a recess for receiving the interconnection device and / or the signal transmission device. This recess is through the second frame 53 '' lockable, especially if the two frames 53 ' . 53 '' are merged.

At least one more support element 57a of the first frame 53 ' has at least one recess for an independent, mechanical connecting element, wherein the connecting element through this recess in a complementary to the connecting element recess of one of the middle parts of the housing 29 . 29a can be performed. Preferably, the independent connection element is designed as a screw, the recess of the support element 57a as a through hole and the recess of one of the middle parts of the housing 29 . 29a formed with an internal thread. Alternatively, the independent connection element with a threaded rod and at least one nut and the recess of one of the middle parts of the housing 29 . 29a formed as a through hole.

4 partially shows schematically two adjacent middle parts of the housing 29 . 29a , each with at least one mounting recess 30 . 30a , as well as a fastener 31 , The mounting recesses 30 . 30a each have an undercut. The mounting recesses 30 . 30a extend substantially perpendicular to an end face of the middle part of the housing 29 . 29a , The fastener 31 extends from a substantially 8-shaped base in the direction of a second end. Preferably, in the base a bore or an internal thread for removing the fastener 31 from the mounting recesses 30 . 30a , Preferably, the fastener 31 at the second end a chamfer, which facilitated insertion into at least one of the mounting recesses 30 . 30a serves.

5 partially shows schematically that the fastener 31 in the mounting recesses 30 . 30a according to 4 is used. So are the middle parts 29 . 29a mechanically interconnected.

6 shows partially schematically one of these middle parts 29 and two fasteners 31 . 31a for insertion in fastening recesses 30 . 30a , The illustrated fasteners 31 . 31a serve the mechanical attachment of the middle part of the housing 29 or the associated module at the site of the energy storage device. The fasteners 31 . 31a each have a section for insertion into one of the mounting recesses 30 . 30a and in each case a section, preferably with a thread, for attachment to the place of use of the energy storage device or of the housing middle part 29 on.

7 partially shows schematically that the two fasteners 31 . 31a in the mounting recesses 30 . 30a according to 6 are used. Thus, the middle part is 29 prepared for attachment of the associated module at the site of the energy storage device.

8th partially shows schematically two middle parts of the housing 29 . 29a , which together with two fasteners 31 . 31a are connected, similar 5 , with further fastening elements 31 , b, 31c . 31d . 31c 31d . 31e which are similar in mounting recesses 7 are used.

9 shows partially schematically one of these functional modules 34 with housing cover 35 , with fittings 41 , with electronics module, with device connections 39 , with data interface 40 and with an assembly housing 47 , From the housing cover 35 extend the fittings 41 , the device connections 39 and the data interface 40 , in particular in the environment of the energy storage device. The module housing 47 extends in the opposite direction from the housing cover 35 , in particular in the direction of the receiving space of the module housing or the cell arrangement. The module housing 47 is provided for receiving parts of the electronic assembly, in particular for receiving the control device, the measuring device, at least one of these switching devices. The module housing 47 has a recess through which Stromleiteinrichtungen can be guided to the busbars. The device connections 39 are summarized in a relation to the environment electrically isolable part housing. The data interface 40 is signal-connectable to a higher-level controller. The fittings 41 can be connected to a fluid supply line or a fluid return line.

10 shows partially schematically and partially disassembled a cell assembly 2 , for example, with 11 energy storage devices, as well as two HV connection elements 12 before the interconnection of the energy storage devices 3 . 3a . 3b , The first energy storage device 3 is not yet with the other energy storage devices of the cell assembly 2 connected. Preferably, this cell arrangement 2 intended for the master module. Preferably, the energy storage devices 3 . 3a . 3b the cell arrangement 2 intended to be connected in series.

The energy storage devices 3 are designed with current conductors 11 . 11a . 11b . 11c and first connection sections 14 . 14a ,

The energy storage device 3 is formed essentially cuboid. The energy storage device 3 has an electrode stack or an electrode flat coil. The energy storage device 3 has an enclosure with a composite foil or with at least one housing molding.

The current collector 11 . 11a . 11b . 11c extend from a first lateral surface of the energy storage device 3 , are arranged in pairs on opposite ends of the first lateral surface and each have two mutually angled legs. The second legs of the current conductors have the contacting sections 13 . 13a . 13b . 13c on. The current collector 11 . 11a . 11b . 11c are each formed with aluminum or with copper or with an alloy with one of these metals. Preferably, the first leg and the second leg of the same Stromableiters form a right angle to each other.

The first two connecting sections 14 . 14a extend from a second lateral surface of the energy storage device 3 , which is opposite to the first lateral surface. The first connecting sections 14 . 14a each have a leg, which is aligned substantially parallel to the second lateral surface and designed for planar, heat-conducting connection with the tempering device. The first two connecting sections 14 . 14a each have two recesses, which are designed for engagement with one of the connecting means. A first recess is located at a first end of the leg and a second recess is disposed at a second end opposite the first end of the same leg.

The first lateral surface of a first energy storage device has a greater or lesser distance than the first lateral surface of an adjacent energy storage device with respect to the tempering device to be added later or with respect to its heat exchange surface. This has the consequence that contacting sections of adjacent energy storage devices can overlap one another for simplified interconnection or cohesive connection of these contacting sections. In the illustrated cell arrangement 2 one of the first lateral surfaces is arranged either in a first or in a second plane, wherein the first and the second plane have different distances with respect to the tempering device to be added later or with respect to its heat exchange surface. Along the cell assembly 2 the first lateral surfaces are arranged alternately in the first and in the second plane. The first lateral surface of the second energy storage device 3a are arranged with respect to the later heat exchange surface above the first lateral surfaces of the two adjacent energy storage devices. The contacting portions of the second energy storage device 3a are arranged above the contacting portions of the two adjacent energy storage devices with respect to the later heat exchange surface.

The current collector 11a is provided, electrically connected to the current collector 11c to be connected. The current collector 11 is provided, electrically connected to the current collector 11b to be connected.

The HV connection elements 12 . 12a are substantially plate-shaped and formed with a polymer material. The HV connection elements 12 . 12a have recesses for weight savings, each have one of these Potentialabgriffe and each have second connecting portions. The HV connection elements 12 . 12a are each designed for electrical, in particular cohesive connection with one of the current conductor of one of the energy storage devices.

11 shows partially schematically the cell arrangement 2 according to 10 with connected HV connection elements, a heat conducting foil 43 , as well as a tempering device 4 , before step S4. Preferably, this cell arrangement 2 intended for the master module. Preferably, the energy storage devices are the cell assembly 2 connected in series.

The heat-conducting foil 43 is cut from a roll material such that it is no longer than the tempering device 4 is.

The tempering device 4 has a base plate 5 , two fluid guiding device 7 . 7a and two connecting devices 9 . 9a on.

The base plate 5 has four of these fluid channels 6 . 6a . 6b . 6c on. The fluid channels each extend between the first end and the second end of the base plate 5 and are open to these ends. The base plate 5 has along opposite lateral surfaces in each case a continuous rib, which is the positioning of the connecting devices 9 . 9a facilitate and the durability of the connection with these connecting devices 9 . 9a to improve.

The base plate 5 is so cut from a first blank that the length of the tempering 4 less than or equal to the length of the cell assembly, in particular including the HV terminals connected to the cell assembly.

The first fluid guiding device 7 has two of these third fluid channels 8th . 8a on, which are each formed as a recess. The first of these third fluid channels 8th serves to exchange the tempering fluid between the first fluid channel 6 and the second fluid channel 6a the base plate 5 , The second of these third fluid channels 8a serves the replacement of the tempering between the third fluid channel 6b and the fourth fluid channel 6c the base plate 5 , The first fluid guiding device 7 is intended to be materially connected to the second end of the base plate.

The second fluid guiding device 7a has a third fluid channel 8b on, which is designed as a recess. The third fluid channel 8b serves to exchange the tempering fluid between the second fluid channel 6a and the third fluid channel 6b the base plate 5 , The second fluid guiding device 7a has two fittings 32 . 32a on. The first connector 32 serves to transfer the tempering fluid from an independent fluid supply line into the first fluid channel 6 the base plate 5 , The second connector 32a serves to transfer the tempering fluid from the fourth fluid channel 6c the base plate 5 in an independent fluid return line. The second fluid guiding device 7a is provided with the first end of the base plate 5 to be connected cohesively.

The connecting devices 9 . 9a each have connecting means 10 . 10a . 10b for all energy storage devices of the cell arrangement. The connecting means 10 . 10a . 10b are designed as latching hooks and for engagement in recesses in first connection sections of the energy storage devices. The connecting devices 9 . 9a each have a groove, which for Picking up a rib of the base plate 5 is designed. The connecting devices 9 . 9a are cut to length from a second blank such that a connection means is available for each of the energy storage devices.

Together with lateral surfaces of the connected fluid guiding devices 7 . 7a forms a lateral surface of the base plate 5 the heat exchange surface.

12 shows partially schematically the cell arrangement 2 according to 11 , which with the tempering device 4 is connected after step S4. The cell arrangement 2 is intended for a master module or a slave module. The cell arrangement 2 is for insertion in one of the middle parts of the housing 29 . 29a certainly. Preferably, this cell arrangement 2 intended for the master module.

13 shows partially schematically the cell arrangement 2 with the associated tempering device 4 according to 12 , as well as a voltage sensor device 16 , before step S9. Preferably, this cell arrangement 2 intended for the master module.

The voltage sensor device 16 has an interface device 18 and exemplary contact surfaces 17 for the cell arrangement 2 with 11 energy storage devices on.

The voltage sensor device 16 has a substantially band-shaped carrier element, which is preferably formed with a polymer material, particularly preferably with a polymer film. The support member extends from a first end to which the interface device 18 is arranged.

The interface device 18 has several, in particular pin-shaped, contact elements. Preferably, the interface device 18 formed with a standard industrial connector.

Along the support member are a plurality of contact surfaces 17 . 17a arranged. At least two of the contact surfaces, preferably a plurality of pairs of adjacent contact surfaces, are arranged along the support element relative to each other substantially corresponding to the first edge length. The contact surfaces are electrically conductive, preferably with a metal, formed and formed for electrical connection to one of the current conductor or one of the contacting sections.

Along the carrier element extend a plurality of conductor tracks, which each electrically connect one of the contact surfaces with one of the contact elements. Preferably, the conductor tracks are formed with a metal on a lateral surface of the, in particular designed as a polymer film, carrier element and connected to the lateral surface.

The carrier element can be shortened starting from the second end, which lies opposite the first end, wherein at least a portion of the carrier element can be separated from the remainder of the carrier element. When shortening or separating, at least one of the contact surfaces is removed from the remainder of the carrier element and the associated conductor track is separated. Preferably, a plurality of recesses for the mechanical connection of the voltage sensor device to the cell arrangement are arranged along the voltage sensor device.

Particularly preferably, the voltage sensor device 16 a plurality of separable, substantially similar, portions and is particularly preferably separable between two such sections. These substantially similar sections each have at least one of these recesses for mechanical connection and in each case one of these contact surfaces. However, the separable portions differ in the number of the conductor tracks, so that the first separable portion, which adjoins the second end of the support member has a conductor, the second separable portion comprises two tracks, the third separable section three tracks, etc.

The voltage sensor device 18 The figure is with 12 contact surfaces 17 formed or cut to length, that 11 Stromableiter or contacting sections can be contacted electrically. In this way, the electrical voltages of 11 energy storage devices can be detected.

14 shows partially schematically the cell arrangement 2 with the associated tempering device 4 according to 12 and 13 , after step S9, in particular after the electrical connection of the contact surfaces 17 with the current conductors 11 or Kontaktierungsabschnitten and after connecting the interface device 18 with one, in particular the first, of the HV connection elements 12 , The second end of the voltage sensing device 16a is with another, in particular the second, the HV connection elements 12a mechanically connected. The contact surface 17 is with one of the current conductors 11 the third energy storage device 3b electrically, preferably cohesively, connected, particularly preferably welded for low contact resistance. Preferably, this cell arrangement 2 intended for the master module.

15 shows partially schematically the cell arrangement 2 with the associated tempering device 4 and the voltage sensing device 16 according to 13 and 14 , as well as an insulating film 21 , before connecting the insulating film 21 with the cell arrangement 2 , Preferably, this cell arrangement 2 intended for the master module.

The insulating film 21 is with several strip-shaped adhesive surfaces and with linear thin areas 22 . 22a educated. The insulating film 21 has three, substantially rectangular, sections 23 . 23a . 23b on, which are formed for at least partially covering three lateral surfaces of the cell assembly. The insulating film 21 has several adhesive surfaces 45 on, which are provided for connection to the lateral surfaces of the cell assembly.

16 shows partially schematically the cell arrangement 2 according to 15 after bonding with the insulating film 21 , Also, the voltage sensing device is of the insulating film 21 covered. The interface device 18 but is accessible. Preferably, this cell arrangement 2 intended for the master module.

17 shows partially schematically the cell arrangement 2 according to 16 as well as two of these busbars 25 . 25a , before step S12. The figure partially shows schematically the energy storage device with 11 energy storage devices prior to the attachment of busbars 25 . 25a , The first HV connection element 12 has a potential tap 48 on which of the connection with one of the busbars 25a serves. It is not shown that the second HV connection element also has a similar potential tap. The busbars 25 . 25a each have two plate-shaped sections 26 . 26a . 26b . 26c on which of the electrical connection with a potential tap 48 or a Stromleiteinrichtung, in particular designed as a power cable or power band serve. The busbar 25 , which with the second HV-connection element 12a is to be connected, has a longitudinal section 27 which may extend along the cell assembly. Preferably, this cell arrangement 2 intended for the master module.

18 shows partially schematically the cell arrangement 2 according to 17 after step S12, after the attachment of busbars 25 . 25a , The busbars 25 . 25a are with the potential taps 48 screwed. The plate-shaped sections 26a . 26b are adjacent to the first HV terminal 12 arranged so that only first HV connection element 12 the cell arrangement 2 needs to be accessible. Below the first HV connection element 12 extend the fittings 32 the tempering device 4 , so that only the first HV connection element 12 the cell arrangement 2 needs to be accessible. The cell arrangement 2 is with the tempering device 4 connected. Preferably, this cell arrangement 2 intended for the master module.

19 shows partially schematically the cell arrangement 2 similar 16 before steps S39 and S40. Preferably, this cell arrangement 2 intended for the slave module. The cell arrangement 2 and the tempering device 4 essentially correspond to those of the master module.

Shown are also two busbars 25 . 25a , These busbars 25 . 25a are part of the electrical interconnection device 55 , The busbars 25 . 25a each have two of these plate-shaped sections 26 . 26a on. The plate-shaped sections 26 . 26a are configured for interconnection with the cell assembly of the master module and for interconnection with the device terminals.

The signal transmission device 56 has a connector for electrical connection to the interface device 18 on. A signal cable extends from the connector, preferably in the direction of the control device of the master module.

20 shows partially schematically the cell arrangement 2 according to 19 after the steps S39 and S40. The busbars 25 . 25a the interconnection device 55 are electrically connected to the cell array two. The signal transmission device 56 is electrically connected to the interface device 18 connected.

21 partially shows schematically two of these cell arrangements 2 . 2a , essentially according to the 18 and 20 after step S37. The cell arrangement 2 is intended for the master module. The cell arrangement 2a is intended for one of these slave modules. The first functional device 53 is provided. The first functional device 53 is essentially the same as the first frame 53 ' of the 3 , The first functional device 53 is designed for the mechanical connection of a master module and one of these slave modules.

22 shows partially schematically the cell arrangements 2 . 2a , according to 21 after step S37. The first functional device 53 is to the first HV connection elements 12 the cell arrangements 2 . 2a approximated. The interconnection device 55 and the signal transmission device 56 extend through a recess of the support element 57 ,

23 shows partially schematically the cell arrangements 2 . 2a , according to 22 , as well as one of these functional assemblies 34 after step S21. Two seals 46a . 46b serve to seal the first functional device 53 or their frame 53 ' . 53 '' opposite the environment. The function module 34 is aligned, by a substantially cuboidal recess of the first functional device 53 in the direction of the cell arrangement 2 to be moved. The device connections 39 and the data interface 40 extend out of the function module 34 in the nearby areas.

24 shows partially schematically the cell arrangements 2 . 2a , according to 22 , as well as one of these functional assemblies 34 after step S21. The function module 34 is through the first functional device 53 guided. Recesses in the lids 35 . 35a and recesses in the first functional device 53 , each for receiving mechanical fasteners are aligned with each other.

25 shows partially schematically the cell arrangements 2 . 2a , according to 22 , as well as one of these functional assemblies 34 after step S15, before step S22, after step S39, after step S40. Two housing middle parts 29 . 29a , preferably mechanically connected to each other, are arranged adjacent to each other for receiving the cell assemblies 2 . 2a , Another seals 46c is arranged between the first functional device 53 and end faces of the middle parts of the housing 29 . 29a be inserted.

At opposite ends of the middle parts of the housing 29 . 29a are also seals and covers for connection with the middle parts of the housing 29 . 29a arranged.

26 partially shows schematically a master module 52 and a slave module 51 , essentially according to 25 after step 38, after step S39, after step S40. The cell arrangements 2 . 2a are in the receiving spaces of the housing middle parts 29 . 29a used. The first functional device 53 and the housing cover 35 are mechanical with the housing middle parts 29 . 29a connected, in this case with screws. A preferred embodiment of the energy storage device 1 is formed.

27 partially shows schematically the master module 52 and the slave module 51 , according to 26 , before step S23. The bottoms of the modules 51 . 52 have recesses for connecting elements for the mechanical connection of the tempering with the middle parts of the housing 29 . 29a on.

28 partially shows schematically the master module 52 and the slave module 51 , according to 27 after step S23. The tempering devices of the modules 51 . 52 are with the housing middle parts 29 . 29a mechanically connected. A preferred embodiment of the energy storage device 1 is formed.

29 partially shows schematically four middle parts of the housing 29 . 29a . 29b . 29c , as well as two of these first functional devices 53 . 53a , Next shows 29 several seals 46 and several housing covers 35a ,

The first functional devices 53 . 53a each have two frames 53 ' . 53 '' . 53 ''' . 53 '''' on. One of each of these frames 53 ' . 53 '''' has at least one, preferably three, of these support elements 57 . 57a with a recess for receiving a connection device and / or a signal transmission device. At least one of these frames 53 ' . 53 '' . 53 ''' . 53 '''' has recesses for mechanical fasteners, in this case screws. At least one of these frames 53 ' . 53 '' . 53 ''' . 53 '''' has four substantially cuboid cavities or recesses, which are provided housing openings of the middle parts of the housing 29 . 29a . 29b . 29c release.

Some of these seals 46a are provided between each two of these frames 53 ' . 53 '' . 53 ''' . 53 '''' be inserted. Some of these seals 46a are provided between each one of these frames 53 ' . 53 '' . 53 ''' . 53 '''' and one of the middle parts of the housing 29 . 29a . 29b . 29c to be inserted.

30 partially shows schematically one of the first functional devices 53 according to 29 , This first functional device 53 formed with three support elements 57 . 57a each with a recess can be prepared independently of time for an energy storage device with a master module and three slave modules.

31 partially shows schematically one of these slave modules 51 after step S23.

The slave module 51 has a cell arrangement and a tempering device 4 on. The cell arrangement has at least one of these HV connection elements 12 and by way of example 15 energy storage devices. The slave module 51 is already in a middle part of the housing 29 or its receiving space used.

The slave module 51 or its cell arrangement is designed with a voltage sensor device. At the interface device 18 electrical potentials are provided to one of the energy storage devices of the cell array.

The HV connection element 12 has a potential tap 48 for electrical interconnection with an interconnection device, not shown.

The tempering device 4 has two connecting pieces for exchanging a tempering fluid with fluid channels of the tempering 4 , The tempering device 4 is with the middle part of the housing 29 screwed.

The middle part of the housing 29 has several mounting recesses 30 . 30a on, which extend along the housing longitudinal axis. The middle part of the housing 29 is cut from a continuous casting profile, not shown first functional means sections of the cell assembly or the tempering 4 can surround.

32 partially shows schematically three of these slave modules 51 . 51a . 51b , a cell arrangement 2 for the master module, as well as a first functional device 53 , before step S38. The slave modules are essentially according to the 31 educated.

Several seals 46 are provided between the first functional device 53 and the housing middle parts of the modules to be inserted.

The frame 53 ' the first functional device 53 is essentially according to the 30 educated.

The cell arrangement 2 and the tempering device 4 , determined for the master module are shorter than the corresponding modules of the slave modules. The free space, which is upstream of the HV connection element is provided, the function module, not shown 34 or at least partially accommodate their electronic assembly.

33 shows partially schematically the arrangement according to 32 as well as the interconnection device 55 , before step S39.

The first functional device 53 or their frame 53 ' is with the middle parts of the three slave modules 51 . 51a . 51b been planted. The frame 53 ' surrounds at least portions of the cell assemblies and the tempering of the slave modules 51 . 51a . 51b ,

The interconnection device 55 , formed here with two of these busbars 25 . 25a , is prepared for electrical connection with the slave modules 51 . 51a . 51b , in particular with their potential taps 48 ,

34 shows partially schematically the arrangement according to 33 after step S39. The interconnection device 55 is electric with the slave modules 51 . 51a . 51b connected.

35 shows partially schematically the arrangement according to 34 with one of these function modules 34 , before step S38.

The function module 34 , equipped with the device connections 39 , the data interface 40 and two fittings 41 , one of the housing cover and the electronics assembly 36 , is for insertion in the, HV connector 12 provided upstream, free space.

Several seals 46 . 46a , the second frame 53 '' the first functional device 53 as well as numerous housing covers 35 are also provided.

36 shows partially schematically the arrangement according to 35 after step S27. The function module 34 is in the, HV connector 12 used upstream, free space. The housing covers are connected to the first functional device 53 introduced.

37 shows partially schematically the arrangement according to 36 with another of these first functional devices 53a during step S22, in particular for the formation of the master module 52 ,

Although the cell arrangement 2 and the tempering device 4 of the master module 52 each shorter than the corresponding modules of the slave modules are formed, the middle parts of the housing 29 as long as the housing middle parts of the slave modules. The receiving space of the middle part of the housing 29 is sized so that the function module 34 at least partially can be included.

Provided are a frame 53 '''' another first functional device 53a , more seals 46 as well as further busbars 25c . 25a , The busbars 25c . 25a are part of the interconnection device 55 ,

The frame 53 '''' is essentially the no longer individually recognizable framework 53 ' the first functional device 53 educated.

38 shows partially schematically the arrangement according to 37 after step S22, after step S23.

cell arrangement 2 and the tempering device 4 of the master module 52 are in the middle part of the housing 29 used, as well as the parts of the function module 34 ,

The tempering device 4 is with the middle part of the housing 29 screwed.

The frame 53 '''' is brought to the housing middle parts of the modules and surrounds sections of the cell assemblies and the temperature control of the modules.

Provided are other seals 46a another frame 53 ''' the further first functional device 53a and further housing cover for connection to the further first functional device 53a ,

39 partially shows schematically an energy storage device 1 essentially according to 38 after step S38.

seals 46a , the more frame 53 ''' as well as the other housing cover are with the other first functional device 53a and the housing middle parts of the modules mechanically connected.

The device connections 39 , the data interface 40 and the fittings 41 extend into the environment of the energy storage device 1 , About the device connections 39 Energy can be exchanged with the cell arrangements of the modules.

Preferably, the cell arrangements of the modules are connected in series by the interconnection device, so that the sum voltage of the cell arrangements of the modules at the device terminals 39 is provided.

40 partially shows schematically another energy storage device 1 with a master module 52 and a slave module 51 , which by means of one of these first functional means 53 are connected.

Apart from that, this energy storage device 1 only one of these slave modules 51 has, corresponds to the energy storage device 1 essentially the energy storage device according to 39 , Deviating, this energy storage device 1 only a first functional device 53 on.

The fittings of the tempering device of the slave module 51 do not extend through the adjacent housing cover, but are via a fifth fluid guide device with the fittings 41 the function module fluidly connected. The fifth fluid guiding device is covered by the housing cover, extends at least in sections within the first functional device 53 and is preferably formed with at least two pipes.

41 partially shows schematically another energy storage device 1 with a master module 52 and two different length slave modules 51 . 51a , which by means of one of these first functional means 53 are connected.

Apart from that, the energy storage device 12 these slave modules 51 . 51a has, corresponds to the energy storage device 1 essentially the energy storage device according to 40 ,

The slave module 51a has fewer energy storage devices than the adjacent slave module 51 on. The middle part of the housing 29 of the slave module 51a Although also cut from a continuous casting profile, but with a length which corresponds to the number of energy storage devices or the length of the cell assembly of the slave module 51a is adjusted.

By the cell arrangement of the slave module 51a has less energy storage devices than the cell arrangement of the adjacent slave module 51 , and the cell arrangements of the modules are each connected in series, the sum voltage of the energy storage devices can be adapted to the needs of the consumer to be supplied.

42 partially shows schematically another energy storage device 1 with a master module 52 and three of these slave modules 51 . 51a . 51b , which by means of one of these first functional means 53 are connected.

Although the individual modules essentially correspond to the modules of the 39 for adapting the geometry of the energy storage device 1 to the available space at the destination, however, the modules are arranged according to a 2 × 2 matrix.

As in the energy storage device according to 40 extend the fittings of the tempering of the slave module 51 not by the adjacent housing cover, but are via a fifth fluid guide device with the fittings 41 the function module fluidly connected. The fifth fluid guiding device is covered by the housing cover, extends at least in sections within the first functional device 53 and is preferably formed with at least two pipes.

43 shows a flowchart of a manufacturing method for an energy storage device 1 , Starting from a state E2, steps S35, S36, S37, S38, S39 and S40 are performed. After step S40, the state E3 is reached and the energy storage device 1 is finished. Optional steps, presently S41 and S42, are shown in phantom.

For the completion of the energy storage device 1 the order of steps S35 to S37 is not mandatory. However, the steps S35 to S37 must be completed before the steps S38 to S40. The sequence of steps S35 to S37 can, in particular for less production costs, be adapted to the conditions of the production site and / or to the production facilities. For the completion of the energy storage device 1 the order of steps S38 to S40 is not mandatory. The sequence of steps S38 to S40 can be adapted to the conditions of the production facility and / or to the production facilities, in particular for less production outlay.

43a shows a preferred order of steps S35 to S40.

43b shows another preferred order of steps S35 to S40. The sequence of steps S35 to S37 can, in particular for less production costs, be adapted to the conditions of the production site and / or to the production facilities. The sequence of steps S38 to S40 can also be adapted to the conditions of the production facility and / or to the production facilities, in particular for less production outlay.

Preferably, step S41 and / or step S42 is performed subsequent to steps S38 to S40.

The preferred development of the manufacturing method with step 41 offers the particular advantage that the attachment of the modules or module housing is simplified at the destination of the energy storage device.

The preferred development of the manufacturing method with step 42 offers the particular advantage that the temperature control of the energy storage devices, preferably the heat removal from the energy storage devices, is simplified, preferably for a longer service life of the energy storage devices.

43c shows another preferred order of the steps.

Step S38 is performed after steps S39 and S40, particularly for facilitating the steps S39 and S40.

The sequence of steps S41 and S42 with one another can be adapted to the conditions of the production site and / or to the production facilities, in particular for less production costs. Preferably, step S41 is performed before S38, whereby, in particular, the execution of step S41 is simplified. Preferably, step S42 is performed before S38, whereby in particular the execution of step S42 is simplified.

44 shows a flowchart of a manufacturing method for a functional assembly.

This manufacturing process can be independent of the manufacturing process of the time 45 and 46 are carried out, is preferably before the manufacturing process according to 44 complete.

The sequence of steps S20 and S21 is irrelevant for the provision of a functional assembly, in particular for simplified installation of the energy storage device. The sequence of steps S18 and S19 is irrelevant to the provision of a functional module, in particular for simplified installation of the energy storage device, but steps S18 and S19 are to be performed before steps S20 and S21. Then the function module is prepared. This manufacturing method has the particular advantage that the later functional connection of the cell arrangement and the tempering device with the control device, the measuring device and fittings for fluid supply and fluid return according to steps S27 and S28 is simplified. In particular, this manufacturing method has the advantage that with the combination of control device, device connections and housing cover, preferably with a combination of measuring device, connecting pieces and / or data interface, the handling of the functional energy storage device during assembly of the energy storage device is simplified.

45 shows a flowchart of a manufacturing method of a cell assembly and a tempering device for a master module and / or a slave module. Optional steps are marked by dashed frames.

The production process, presented in 45a , starts at state E0, has steps S1, S2, S3, S4 and S7 and ends at state E1. An order of steps S3 and S4 is not mandatory for the technical effect. In state E1, the cell arrangement and the tempering device are formed and connected to one another, so that the energy storage devices of the cell arrangement, in particular for increased life of the energy storage devices, can be tempered. Preferably, the energy storage device goes on without further action in the state E2.

The state E1 may be preceded by the steps S5, S6 and S30, wherein the order of these steps for the technical effect of saving material in the production, is not mandatory. The execution of steps S5, S6 and S30 depends on the number of energy storage devices of the cell assembly as well as on the length of the prefabricated base plate and connecting devices. Step S5 is to be performed if the length of the tempering device to be provided with a base plate would exceed the length of the cell arrangement. Step S6 is to be carried out if the length of the tempering device to be provided with one of the prefabricated connecting devices would exceed the length of the cell arrangement. Step S30 is to be carried out if the length of the tempering device to be provided here with steps S1 and S2 for the heat-conducting contact of the energy storage devices of the cell arrangement is insufficient. Step S30 is to be combined with step S5 if the length of the tempering device to be manufactured with at least two base plates would exceed the length of the cell arrangement.

By performing step S14, the heat exchange between the tempering device and the energy storage devices of the cell assembly is improved. With the implementation of step S13 material can be saved. With the implementation of step S13, the length of the heat-conducting foil can be adapted to the length of the tempering device.

The production process, presented in 45b shows a flowchart relating to a preferred embodiment of the manufacturing process of 45a , The preferred development begins at state E1, has the steps S8, S9, S11, S12 and ends at state E2. This preferred development offers the particular advantage that the cell arrangement in the state E2 via the HV terminal elements is easier, especially mechanically stable, electrically contacted. This preferred development offers the particular advantage that, knowing the individual voltages of the energy storage devices, the utilization of the individual charging capacities is improved. This preferred development offers the particular advantage that the electrical insulation of the cell assembly is improved with respect to the environment. This preferred development offers the particular advantage that only the first HV connection element needs to be accessible for the electrical contacting.

Preferably, the preferred development also has the steps S16, S10 and / or S17. Supplemented by step S16, this preferred development offers the particular advantage that the number of contact surfaces of the voltage sensor device can be adapted to the number of energy storage devices of the cell arrangement. Supplemented by step S10, this preferred development offers the particular advantage that material can be saved. Supplemented by step S17, this preferred development offers the particular advantage that the busbar for providing the electrical potential adjacent to the first HV connection element can be adapted to the number of energy storage devices of the cell arrangement.

46 shows a flowchart of a manufacturing method for a master module and / or a slave module. This manufacturing process starts in state E2, has steps S22, S23 and S24 and ends at state E3. Optional steps are marked by dashed frames.

This preferred development offers the particular advantage that the protection of the cell arrangement, the tempering device and the functional assembly is improved by mechanical damage. This preferred development offers the particular advantage that an undesirable exchange of substances between the cell assembly and the environment is encountered.

The sequence of steps S24 and S23 is irrelevant to the technical effect of the preferred development, ie. H. Providing a more durable energy storage device.

Preferably, the development also includes the step S27 and / or S28, wherein the order of these steps for the improved protection of the cell assembly against mechanical damage is irrelevant. Supplemented by step S27, the supply of the tempering device with a tempering fluid is simplified. If step S27 is performed before step S22, then the mounting of the energy storage device is simplified. Supplemented with step S28, the replacement of electrical energy with the cell assembly by means of the device connections is simplified. If step S28 is performed before step S22, then the mounting of the energy storage device is simplified.

Preferably, the development also includes the step S25 and / or S26, wherein the order of these steps for the improved protection of the cell assembly against mechanical damage is irrelevant. Supplemented with step S25, in particular before step S24, the sealing of the module housing from the environment is improved. Supplemented with step S26, in particular before step S24, the attachment of the energy storage device at the destination is simplified.

Preferably, the development also includes step S15, in particular before step S22. How far the central part of the housing is cut to length depends on the length of the cell arrangement, the length of the tempering device and on the length of the continuous casting profile or the length of a prefabricated section of the continuous casting profile. Supplemented by this step, the further development offers the particular advantage that material can be saved during production. Supplemented by this step, the training offers the particular advantage that unused space in the module housing can be avoided.

LIST OF REFERENCE NUMBERS

1

Energy storage device

2, 2a

cell arrangement

3, 3a, 3b

electrochemical energy storage device

4

tempering

5

baseplate

6, 6a

Fluid channel of the base plate

7, 7a

Fluid carrying member

8th

third fluid channel of the fluid guiding device

9, 9a

connecting device

10

Connecting means of the connecting device

11, 11a

Current conductor

12, 12a

HV connection element

13

Contacting section of a current conductor

14

first connecting portion of an energy storage device

15

second connection portion of an HV terminal

16, 16a

Voltage sensing means

17, 17a

Contact surface of the voltage sensor device

18, 18a

Interface device

19, 19a

Contact elements of the interface device

20

Conductor between contact surface and contact elements

21

insulation

22

thin place

23

Section of insulating foil

24

Lateral surface of the cell arrangement

25

conductor rail

26

plate-shaped section of the busbar

27

Longitudinal section of the busbar

28, 28a

module housing

29, 29a

Housing body

30, 30

mounting recess

31, 31a

independent fastening element

32, 32a

Connecting piece, preferably a fluid guiding device

33, 33a

independent fluid supply or fluid return

34

function module

35

housing cover

36

electronics assembly

37

control device

38

measuring device

39, 39a

electrical device connection

40

Data Interface

41, 41a

Connection piece of the function module

43

Heat conducting

44

Access opening for tempering fluid

45, 45a

Adhesive surface of the insulating film

46, 46a

poetry

47

Module housing for function module

48, 48a

potential tap

51, 51a

Slave module

52

Master module

53

first functional device

53 ', 53' '

Parts of the multi-part first functional device

54

fifth fluid guiding device

55

electrical interconnection device

56

Signal transmission means

57, 57a

support element

Claims (18)

Energy storage device ( 1 ) for providing electrical energy, comprising at least one slave module ( 51 ), with at least two electrochemical energy storage devices ( 3 . 3a ), which are interconnected, preferably in series, with a first module housing ( 28 ) for receiving the energy storage devices ( 3 . 3a ), a master module ( 52 ), with at least two electrochemical energy storage devices ( 3b . 3c ), which are interconnected, preferably in series, with a second module housing ( 28a ) for receiving the energy storage devices ( 3b . 3c ), with a control device ( 37 ) for controlling the energy storage devices ( 3 . 3a . 3b . 3c ), with two device connections ( 39 . 39a ) of different polarity for providing the electrical voltage of the energy storage devices ( 3 . 3a . 3b . 3c ), an electrical interconnection device ( 55 ) configured for the electrical connection of the energy storage devices ( 3 . 3a . 3b . 3c ) and for connecting the energy storage devices ( 3 . 3a . 3b . 3c ) with the device connections ( 39 . 39a ), a signal transmission device ( 56 ), which is used to transmit signals between the control device ( 37 ) and the slave module ( 51 ), a, preferably frame-shaped, first functional device ( 53 ), which with the second module housing ( 28 ) and at least one of the first module housing ( 28a ) is mechanically connectable, which is designed for recording, preferably for supporting, the interconnecting device ( 55 ) and the signal transmission device ( 56 ). Energy storage device ( 1 ) according to claim 1, wherein at least one of the module housings ( 28 . 28a ), preferably tubular, middle part ( 29 . 29a ), wherein the middle part of the housing ( 29 . 29a ) has a housing jacket, which extends along a housing longitudinal axis, which has a, preferably substantially cuboidal, receiving space at least in sections relative to the surroundings of the module housing ( 28 . 28a ), wherein the receiving space for receiving at least one of the energy storage devices ( 3 . 3a . 3b . 3c ), at least one, preferably substantially rectangular, housing opening, which is arranged substantially perpendicular to the housing longitudinal axis, wherein the receiving space is accessible through the housing opening, at least one mounting recess ( 30 . 30a ) for receiving at least one independent fastening element ( 31 . 31a ), wherein the fastening recess ( 30 . 30a ) is arranged on or in the housing jacket, preferably can be cut to length from a continuous casting profile. Energy storage device ( 1 ) according to one of the preceding claims, wherein the first functional device ( 53 ) is configured, at least in sections, along one, preferably essentially one, of the housing openings of at least one of the module housings ( 28 . 28a ), preferably substantially plate-shaped with at least one support element ( 57 ), wherein the at least one support element ( 57 ) is configured, at least in sections along one of the housing openings of the first module housing ( 28 ) and / or at least in sections along one of the housing openings of the second module housing ( 28a ). Energy storage device ( 1 ) according to one of the preceding claims, with at least one housing cover ( 35 ), which for closing at least one of the housing openings, with at least one of the housing middle parts ( 29 . 29a ) is detachably connectable, wherein preferably the first functional device ( 53 ) between the at least one housing middle part ( 29 . 29a ) and the at least one housing cover ( 35 ) can be inserted. Energy storage device ( 1 ) according to one of the preceding claims, with a functional assembly ( 34 ) required for the master module ( 52 ), which is provided in the second module housing ( 28a ), the function module ( 34 ) at least: one of these housing cover ( 35 ), an electronic assembly ( 36 ), which with the housing cover ( 35 ) is connectable, which the control device ( 37 ) and these device connections ( 39 . 39a ), which preferably has a measuring device ( 38 ) for detecting a physical parameter of at least one of the energy storage devices ( 3 . 3a . 3b ), which preferably has a data interface ( 40 ) for exchanging data or measured values between the control device ( 37 ) and a higher-level controller. Energy storage device ( 1 ) according to one of the preceding claims, with a fifth fluid guiding device ( 54 ), which for carrying out a tempering to the slave module ( 51 ), wherein the first functional device ( 53 ) is configured for receiving, preferably for supporting, the fifth fluid guiding device ( 54 ), with at least one connecting piece ( 41 . 41a ), which is used to exchange the tempering fluid between the fifth fluid guiding device ( 54 ) and an independent fluid line ( 33 . 33a ), wherein preferably the at least one connecting piece ( 41 . 41a ) with the function module ( 34 ) is connectable. Energy storage device ( 1 ) according to one of the preceding claims, wherein the at least one slave module ( 51 ), and preferably the master module ( 52 ), a cell arrangement ( 2 . 2a ) and a tempering device ( 4 . 4a ), wherein the cell arrangement ( 2 . 2a ) at least three interconnectable, substantially cuboid, electrochemical energy storage devices ( 3 . 3a . 3b ) each having a first edge length k1, wherein the second energy storage device ( 3a ) between the first ( 3 ) and the third energy storage device ( 3b ), the tempering device ( 4 . 4a ) for tempering, preferably for holding, the cell arrangement ( 2 ) is configured, wherein the tempering ( 4 ): a base plate ( 5 ), which can be cut to length from a, preferably plate-shaped, first blank, preferably formed as a continuous casting profile, with at least two fluid channels ( 6 . 6a ) for guiding a tempering fluid, which at least partially through the base plate ( 5 ) or the first blank, wherein the base plate ( 5 ) at least with the second energy storage device ( 3a ) is thermally conductively connectable, • at least one, preferably substantially plate-shaped, first fluid guiding device ( 7 ), which with the base plate ( 5 ) thermally conductive, preferably cohesively, is connectable, which with at least one third fluid channel ( 8th ) is formed for exchanging the tempering fluid with one of the fluid channels ( 6 . 6a ), preferably for transferring the tempering fluid from the first fluid channel ( 6 ) in the second fluid channel ( 6a ), wherein the at least one fluid guiding device ( 7 ) with the first ( 3 ) or third energy storage device ( 3b ) thermally conductive, is connectable, • at least one connecting device ( 9 ), which with the base plate ( 5 ), preferably with the at least one first fluid guiding device ( 7 ), preferably cohesively, which can be cut to length from a second blank, wherein the at least one connecting device ( 9 ) or the second blank a plurality of, with a predetermined pitch to each other arranged, first connecting means ( 10 ) for mechanical connection to at least one of the energy storage devices ( 3 ), wherein the predetermined pitch substantially corresponds to the first edge length, wherein preferably the length of the tempering ( 4 ) substantially corresponds to an integer multiple of the first edge length k1, or substantially the sum of the first edge lengths k1 of the energy storage devices ( 3 ), or less than or equal to the length of the cell array ( 2 ). Energy storage device ( 1 ) according to one of the preceding claims, wherein at least one of the energy storage devices ( 3 ): at least two current conductors ( 11 . 11a ) of different polarity, the current conductors ( 11 . 11a ) in sections from a first lateral surface of the energy storage device ( 3 ) extend into their environment and each have a Kontaktierungsabschnitt ( 13 . 13a ), which is arranged substantially parallel to the first lateral surface, and / or a first connecting portion (FIG. 14 ), wherein the first connecting portion extends from a second lateral surface, wherein the second lateral surface is arranged substantially parallel to the first lateral surface, wherein the first connecting portion ( 14 ) for mechanical connection with one of the connecting means ( 10 ) or for heat-conducting connection to the base plate ( 5 ) or one of the first fluid guiding devices ( 7 ) is configured. Energy storage device ( 1 ) according to one of the preceding claims, with a first HV connection element ( 12 ), which with the cell arrangement ( 2 ), preferably with a current conductor ( 11 ) of the first energy storage device ( 3 ), electrically, preferably cohesively, is connectable and with a second HV connection element ( 12a ), which with the cell arrangement ( 2 ), preferably with a current conductor ( 11b ) of the third energy storage device ( 3b ), electrically, preferably cohesively, are connectable, so that at the HV connection elements ( 12 . 12a ) the electrical voltage of the interconnected energy storage devices ( 3 . 3a . 3b ) or the cell arrangement ( 2 ) can be tapped, wherein at least one of the HV connection elements ( 12 . 12a ) a second connecting section ( 15 . 15a ), which for mechanical connection with one of the connecting means ( 10 ) and for heat-conducting connection with the base plate ( 5 ) or one of the fluid guiding devices ( 7 ), wherein preferably the length of the tempering device ( 7 ) is less than or equal to the distance between each one end face of the two HV connection elements ( 12 . 12a ). Energy storage device ( 1 ) according to one of the preceding claims, with at least one, preferably substantially band-shaped, voltage sensor device ( 16 . 16a ), wherein the voltage sensing device ( 16 . 16a ): a plurality of electrically isolated contact surfaces ( 17 . 17a ) for electrical, preferably cohesive, connection with current conductors ( 11 . 11a ), preferably with their Kontaktierungsabschnitten ( 13 . 13a ), wherein at least two of these contact surfaces ( 17 . 17a ) are arranged corresponding to one another substantially corresponding to the first edge length, an interface device ( 18 . 18a ), which at a first end of the voltage sensing device ( 16 . 16a ) arranged mechanically with one, preferably the first, of the HV connection elements ( 12 . 12a ) is connectable, which by a conductor track ( 20 . 20a ) with at least one of the contact elements ( 19 . 19a ), which preferably has a plurality of contact elements ( 19 . 19a ), wherein at least one of the contact elements ( 19 . 19a ) electrically with one of the contact surfaces ( 17 . 17a ) by a conductor track ( 20 . 20a ) connected is. Energy storage device ( 1 ) according to one of the preceding claims, with at least one busbar ( 25 . 25a ), which with a current conductor ( 11b ) one of the energy storage devices ( 3 . 3a . 3b ), preferably with the third energy storage device or with the second HV connection element ( 12a ), which along at least one lateral surface ( 24 ) of the cell arrangement ( 2 ), preferably in the direction of the first energy storage device ( 3 ) or in the direction of the first HV connection element ( 12 ), which with one, preferably angled, strip material or rod material is formed, wherein preferably at least one end of the busbar ( 25 ) a plate-shaped section ( 26 . 26a ) has for a non-positive or positive connection element, wherein preferably the busbar a longitudinal section ( 27 ) whose length corresponds to the length of the cell arrangement ( 2 ) is adjusted. Energy storage device ( 1 ) according to one of the preceding claims, with a second of these first fluid guiding devices ( 7a ), which with the base plate ( 5 ), and preferably the first fluid guiding device ( 7 ) is opposite, thermally conductive, preferably cohesively, connectable, which is preferably at least one connecting piece ( 32 . 32a ) for connection to the fifth fluid guiding device ( 54 ), which preferably has at least one access opening ( 44 . 44a ) for exchanging the tempering fluid with one of these fluid channels ( 6 . 6a ) of the base plate ( 5 ), wherein particularly preferably one of the third fluid channels ( 8a ) between the connector ( 32 . 32a ) and the access opening ( 44 . 44a ). Energy storage device ( 1 ) according to one of the preceding claims, wherein at least one contacting section ( 13 ) one of the energy storage devices ( 3 . 3a . 3b ) a contacting section ( 13a ) of a further, preferably adjacent, energy storage device ( 3 . 3a . 3b ) at least partially covered, these two contacting sections ( 13 . 13a ) are electrically connected to each other, preferably cohesively, wherein preferably at least one of the contacting sections ( 13 . 13a . 13b ) of the first energy storage device ( 3 ) with the first HV connection element ( 12 ) is electrically, preferably cohesively, connectable. Method for producing an energy storage device ( 1 ) for providing electrical energy, with the steps S35 providing a slave module ( 51 ), preferably formed according to one of the device claims, with at least two electrochemical energy storage devices ( 3 . 3a ), which are interconnected, preferably in series, with a first module housing ( 28 ) for receiving the energy storage devices ( 3 . 3a ), S36 Providing a Master Module ( 52 ), preferably formed according to one of the device claims, with at least two electrochemical energy storage devices ( 3b . 3c ), which are interconnected, preferably in series, with a second module housing ( 28a ) for receiving the energy storage devices ( 3b . 3c ), with a control device ( 37 ) for controlling the energy storage devices ( 3 . 3a . 3b . 3c ), with two device connections ( 39 . 39a ) of different polarity for providing the electrical voltage of the energy storage devices ( 3 . 3a . 3b . 3c ), preferably with a functional assembly ( 34 ) according to claim 5, S37 providing one of the first functional devices ( 53 ), preferably formed according to one of the device claims, which with the second module housing ( 28 ) and at least one of the first module housing ( 28a ) is mechanically connectable, which is designed for receiving, preferably for supporting, one of these electrical interconnection devices ( 55 ), wherein the interconnection device ( 55 ) is configured for the electrical connection of the energy storage devices ( 3 . 3a ) of the slave module ( 51 ) with the device connections ( 39 . 39a ), and wherein the first functional device ( 53 ) is configured for receiving, preferably for supporting, a signal transmission device ( 56 ), wherein the signal transmission device ( 56 ) for transmitting signals between the control device ( 37 ) and the slave module ( 51 ), S38 mechanically connecting the first functional device ( 53 ) with at least one of the module housing ( 28 . 28a ), preferably with the second module housing ( 28a ) and at least one of the first module housing ( 28 ), S39 electrically connecting the interconnection device ( 55 ) with the energy storage devices ( 3 . 3a ) of the slave module ( 51 ) or the master module ( 52 ), S40 electrically connecting the control device ( 37 ) with the signal transmission device ( 56 ), preferably with at least one of the steps S41 inserting at least one of these fastening elements ( 31 . 31a ) in at least one of the mounting recesses ( 30 . 30a ), preferably in one of the fastening recesses ( 30 ) of the slave module ( 51 ) and in one of the mounting recesses ( 30a ) of the master module ( 52 ), and / or S42 connecting the fifth fluid guiding device ( 54 ) with the tempering device ( 4 ) of the slave module ( 51 ) or the master module ( 52 ). Method for producing a functional module ( 34 ), preferably according to claim 5, preferably before step S36, with the steps S18 providing a housing cover ( 35 ), preferably designed according to claim 4, preferably designed for connecting to a housing middle part ( 29 ) according to claim 2, S19 preparing an electronic assembly ( 36 ), which with the housing cover ( 35 ), the electronic assembly ( 36 ) has a control device ( 37 ) for controlling the energy storage device ( 1 ), two device ports ( 39 . 39a ) for providing electrical energy from the cell assembly ( 2 ), preferably a measuring device ( 38 ) for detecting a physical parameter of at least one of the energy storage devices ( 3 . 3a . 3b ) or one of the cell arrangements ( 2 . 2a ), preferably a data interface ( 40 ) for exchanging data or measured values between the control device ( 37 ) with a higher-level control, S20 inserting at least one of these fittings ( 41 . 41a ) in the housing cover ( 35 ) for exchanging a tempering fluid with the at least one slave module ( 51 ) and / or with the master module ( 52 ) and for the passage of the tempering fluid through the housing cover ( 35 ), preferably after step s18, S21 connect, preferably releasably, the electronics assembly ( 36 ) with the housing cover ( 35 ), preferably after step S18, preferably after step S19. Method for producing an energy storage device ( 1 ) for providing electrical energy, preferably according to one of the preceding claims, wherein the at least one slave module ( 51 ), preferably the master module ( 52 ), at least one cell array ( 2 ) and a tempering device ( 4 ), wherein the cell arrangement ( 2 ) at least three interconnectable, substantially cuboid, electrochemical energy storage devices ( 3 . 3a . 3b ), preferably each formed according to claim 8, each having a first edge length k1, wherein the second energy storage device ( 3a ) between the first ( 3 ) and the third energy storage device ( 3b ), each of the energy storage devices ( 3 ), at least two current conductors ( 11 . 11a ) of different polarity, the tempering device ( 4 ) at least one base plate ( 5 ), at least one first fluid guiding device ( 7 . 7a ) and at least one connection device ( 9 . 9a ), with the steps S1 connecting, preferably cohesively, the base plate ( 5 ) having at least two fluid channels ( 6 . 6a ) for guiding a tempering fluid which at least partially through the base plate ( 5 ), with at least one of these, preferably substantially plate-shaped, first fluid guiding device ( 7 ), which with at least one third fluid channel ( 8th ) is formed for exchanging the tempering fluid with one of the fluid channels ( 6 . 6a ), preferably for transferring the tempering fluid from the first fluid channel ( 6 ) in the second fluid channel ( 6a ), wherein preferably the first fluid guiding device ( 7 ) is formed according to claim 12, wherein the base plate ( 5 ) at least with the second energy storage device ( 3a ) is thermally conductively connectable, wherein the at least one first fluid guiding device ( 7 ) with the first ( 3 ) or third energy storage device ( 3b ) is heat-conductively connectable, S2 connect, preferably materially, at least one of these connecting devices ( 9 ) with the base plate ( 5 ), preferably with the at least one first fluid guiding device ( 7 ), wherein the at least one connecting device ( 9 ) a plurality of first connecting means arranged at a predetermined pitch relative to each other ( 10 ) for mechanical connection to at least one of the energy storage devices ( 3 ), wherein the predetermined grid dimension is adapted to the first edge length, preferably substantially corresponds to the first edge length, preferably after step S1, whereupon a temperature control device ( 4 ) which is for heat exchange with at least one of the energy storage devices, preferably for holding the cell assembly ( 2 ), S3 arranging the second energy storage device ( 3a ) between the first ( 3 ) and the third energy storage device ( 3b ), so that the second energy storage device contacts the first and the third energy storage device, S4 connect, preferably mechanically, the at least one connection device ( 9 ) with at least one of the energy storage devices by means of at least one of the first connection means ( 10 ), preferably after step S2, preferably after step S3, S7 interconnecting at least two of these energy storage devices, preferably materially connecting a Stromableiters one of these energy storage devices to a current conductor of another of these energy storage devices, preferably in series, whereupon the cell assembly is formed, whereupon the electrical voltage the cell arrangement can be tapped off at a current conductor of the first energy storage device and at a current conductor of the third energy storage device, preferably after step S3, wherein preferably the length of the tempering device ( 4 ) substantially corresponds to an integer multiple of the first edge length, or substantially the sum of the first edge lengths of the energy storage devices ( 3 ), or less than or equal to the length of the cell array ( 2 ), preferably with at least one of the steps S5 cutting the base plate ( 5 ) of a, preferably plate-shaped, first blank, wherein at least two fluid channels ( 6 . 6a ) to lead a Temperierfluids at least partially through the base plate ( 5 ) or the first blank, whereupon the length of the base plate ( 5 ) is less than the sum of the first edge lengths of the energy storage devices ( 3 ), wherein preferably the first blank is formed with a continuous casting profile, and / or S6 cutting the connecting device ( 9 ) of a second blank, the second blank having a plurality of first connecting means (16) arranged at a predetermined pitch relative to one another. 10 ) for mechanical connection to at least one of the energy storage devices ( 3 ), wherein the predetermined grid substantially corresponds to the first edge length, wherein preferably the second blank is formed with an injection molded part, whereupon preferably the length of the connecting device ( 9 ) is dimensioned such that the number of first connecting means ( 10 ) of the connection device ( 9 ) substantially the number of energy storage devices ( 3 ) corresponds. Method according to claim 16, with at least one of the steps S8 interconnecting a first HV connection element ( 12 ), preferably according to claim 9, with one of the energy storage devices ( 3 . 3a . 3b ) and a second HV terminal element ( 12a ), preferably according to claim 9, with a further one of the energy storage devices ( 3 . 3a . 3b ), preferably cohesively connecting the first HV connection element ( 12 ) with a current conductor ( 11 ) of the first energy storage device ( 3 ) and the second HV terminal element ( 12a ) with a current conductor ( 11b ) of the third energy storage device ( 3b ), preferably after step S7, and / or S16 cutting to length a voltage sensing device ( 16 ), preferably formed according to claim 10, which a plurality of contact surfaces ( 17 . 17a ) for electrical connection with current conductors ( 11 . 11a ) of the energy storage devices ( 3 ), wherein at least two of these contact surfaces ( 17 . 17a ) are arranged corresponding to one another substantially corresponding to the first edge length, whereupon the number of contact surfaces ( 17 . 17a ) to the number of energy storage devices ( 3 ), preferably shortening the voltage sensing device ( 16 ) at one end, which the first end of the voltage sensing device ( 16 ), preferably before step S9, and / or S9 electrical, preferably cohesive, connecting a voltage sensing device ( 16 ), preferably formed according to claim 10, which a plurality of contact surfaces ( 17 . 17a ), with at least one of the current conductors ( 11 . 11a ) of the cell arrangement ( 2 ), preferably with the Kontaktierungsabschnitten ( 13 . 13a ) according to claim 8, preferably after step S8, and / or S10 cutting to length, preferably along at least one linear thin point ( 22 ) foldable, insulating film ( 21 ), which isolates the current conductors ( 11 . 11a ), preferably the insulation of the voltage sensing device ( 16 ), in relation to the environment of the cell arrangement ( 2 ), preferably of a polymer film, preferably before step S11, and / or S11 covering, at least in sections, of at least two lateral surfaces ( 24 . 24a ) of the cell arrangement ( 2 ), preferably after folding the insulating film ( 21 ) along at least one of the thin sites ( 22 ), preferably covering the voltage sensing device ( 16 ), preferably after step S9, preferably after step S8, and / or S17 folding, preferably crimping, a strip material or rod material, preferably for forming a longitudinal section, preferably for forming a plate-shaped portion, whereupon a bus bar ( 25 ), preferably configured according to claim 11, whereupon the length of the longitudinal section is greater than or equal to the sum of the first edge lengths of the energy storage devices ( 3 . 3a . 3b ) of the cell arrangement ( 2 ), preferably before step S12, and / or S12 electrical, preferably non-positive, connecting the busbar ( 25 ), preferably formed according to claim 11, with one of the current collector ( 11b ), preferably a current conductor of the third energy storage device ( 3b ), preferably after step S8, preferably after step S11, and / or S13 cutting to length of a heat conducting film ( 43 ), wherein the cut-to-length heat conducting foil ( 23 ) at the length to the tempering device ( 4 ), preferably before step S14, and / or S14 arranging the heat conducting film ( 43 ) on the tempering device ( 4 ), preferably between at least one of the energy storage devices ( 3 . 3a . 3b ) and the tempering device ( 4 ), preferably before step S4, and / or S15 cutting a middle part of the housing ( 29 ), preferably formed according to claim 2, preferably of a continuous casting profile, whereupon the length of the middle part of the housing ( 29 ) substantially the length of the tempering device ( 4 ) or the cell arrangement ( 2 ), and / or S30 connecting, preferably cohesively, a first of these base plates ( 5 ) with a second of these base plates ( 5a ), preferably when the sum of the first edge lengths of the energy storage devices ( 3 . 3a . 3b ) of the cell arrangement ( 2 ) the length of the tempering device ( 3 ) formed with one of these base plates ( 5a ), preferably before step S4. Method according to one of the preceding method claims with S22 insertion of the cell arrangement ( 2 ) and the tempering device ( 4 ) in a receiving room of Housing middle part ( 29 ), preferably after step S12, preferably after step S15, S23 connecting, preferably non-positively, the tempering ( 4 ) with the middle part of the housing ( 29 ), preferably after step S22, S24 connect, preferably non-positively, a housing cover ( 35 ) or the function module ( 34 ) according to claim 5 with the housing middle part ( 29 ), preferably after step S22, preferably with S25 inserting a seal ( 46 ) between one of the housing covers ( 35 ) and the middle part of the housing ( 29 ), preferably before step S24, and / or S26 inserting at least one independent fastening means into one of the fastening recesses ( 30 ) of the middle part of the housing ( 29 ), preferably before step S24, and / or S27 connecting, preferably fluid-conducting, at least one connecting piece ( 41 ) of the function module ( 34 ) with a connection piece ( 32 ) of the second fluid guiding device ( 7a ), preferably before step S22, preferably before step S24, and / or S28 electrically connecting one of the device connections ( 39 . 39a ) with the cell arrangement ( 2 ), preferably with one of the HV connection elements ( 12 . 12a ), preferably before step S22, preferably before step S24.

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